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828mk3 Hybrid User Guide Mac - B&H Photo Video Digital Cameras

1. 23 Main Mix and Monitor channel strips 24 Aux bus channel 25 Group and Reverb channel strips 26 Powerful DSP driven mixing and effects The mixer is driven by a powerful DSP that delivers 32 bit floating point precision and plenty of processing bandwidth for no latency effects including parametric EQ dynamics and reverb Effects can be applied when operating as an audio interface or as a stand alone mixer without a computer Input signals to the computer can be recorded wet and or dry or recorded dry while a real time wet monitor mix is sent to musicians Effects include PION Pass TE 69 A conventional high pass filter A standard gate with threshold attack release controls Four band parametric 70 Multi band parametric EQ modeled after British analog consoles COMPIOSSO acer psa ii l Pad Cr VERE PPS 71 A standard compressor with threshold ratio attack release gain controls level ans 72 The Leveler an accurate model of the legendary LA 2A optical compressor which provides vintage musical automatic gain control REVCRD Mr 73 Classic reverb with tail lengths up to 60 seconds Advantages over host based mixing and processing The hardware mixer in your MOTU AVB interface provides several major advantages over mixing and processing in your host audio software m No buff
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3. aa EE pel REPERI aa TEES 55 Studio 55 Studio Output 56 Optical converter 56 Create your own presets You can create presets to suit your specific needs Your MOTU device is highly capable and configurable allowing it to perform many tasks simultaneously Video tutorials To view several excellent video tutorials for the presets described in this chapter visit www motu com avb AUDIO INTERFACE Choose the Audio Interface preset to use your MOTU AVB device as a standard USB or Thunderbolt audio interface OR audio connections to audio gear Figure 5 1 Using your MOTU AVB device as an audio interface 53 STAND ALONE MIXER Choose the Stand alone mixer preset to use your MOTU AVB device as a mixer Doing so routes all physical inputs to the mixer with the mixer main out and monitor out going to two hardware output pairs To control the mixer with the AVB Control web app you have several options You can connect a computer to your MOTU AVB device using USB Thunderbolt Ethernet or Wi Fi as explained in Setup for web app control on page 40 Figure 5 2 below shows the WiFi scenario Note that you can control the mix from multiple WiFi devices optional Tablet Smart phone WiFi devices Main Aux Aux Mix Mix 1 Mix 2 Airport or any other W
4. Reverb Solo Bus Follow Solo in with the main mix or aux busses Disable the reverb processor to use it as an extra group 12 The Monitor Bus can mirror the output of any other bus or it can act as a separate Solo bus See page 24 13 The Main Mix bus is the master fader for the entire mixer You can add EQ and Leveler compression 14 You can adjust Aux bus output levels here or in the Aux Mixing tab shown on page 22 15 Click a name to change it except for the Main Mix Monitor and Reverb busses which cannot be changed 16 Stereo toggle to switch channel pairs between mono or stereo Use the other menus to manage channel strip presets and to choose audio sources and destinations for mixer inputs and bus outputs 17 Gate processing for inputs 18 The Dynamics section provides a conventional compressor for inputs and the Leveler for output busses eo e 8 19 Reverb and aux sends 20 Solo and mute On the Monitor bus the SC button clears all solos 21 Channel faders 22 Choose the source for the Monitor bus from this menu It can mirror any output bus or the Solo Bus 23 When Follow Solo is enabled the Monitor bus temporarily switches to the solo bus when any channel is soloed 24 Group sends 25 S lets you solo the group toggles the sends between pre and post fader routing i e before or after the channel fader 26 Show an
5. 000000000000 66000000 Ethernet cable to another MOTU AVB device MOTU AVB Switch mu or WiFi router etc 7 00000000000 ona 7 96900000000 Thunderbolt or USB Compressor reverb or other outboard gear quarter inch analog outs UNIVERSAL AUDIO synths samplers effects units etc synthesizer Figure 4 8 A typical 16A studio setup 46 HARDWARE INSTALLATION SYNCHRONIZATION If you connect devices digitally to your MOTU device or if you need to synchronize your MOTU device with an outside time reference such as word clock you must pay careful attention to the synchronization connections and clock source issues discussed in the next few sections Do you need to sync If you will be using only your MOTU devices analog inputs and outputs and none of its digital I O and you don t need to resolve your system to external word clock you don t need to make any sync connections You can skip this section Situations that require synchronization There are two general cases in which you will need to resolve you MOTU device with other devices a Synchronizing with other digital audio devices so that their digital audio clocks are phase locked as shown in Figure 4 9 Resolving your MOTU device to an external clock source m Networking multiple MOTU AVB interfaces together Synchronization is critical for clean digital I O Synch
6. The version of your computer s operating system We re not able to solve every problem immediately but a quick call to us may yield a suggestion for a problem which you might otherwise spend hours trying to track down If you have features or ideas you would like to see implemented wed like to hear from you Please write to the Development Team MOTU Inc 1280 Massachusetts Avenue Cambridge MA 02138 or use our online suggestion box at www motu com suggestions APPENDIX A TROUBLESHOOTING APPENDIX B 1248 Line Out Connector Type Output Impedance Dynamic Range THD N Frequency Response Max Level Out Trim Range Guitar In Connector Type Impedance Dynamic Range THD N Frequency Response Max Level In Trim Range Line In Connector Type Specification Impedance Load Dynamic Range THD N Frequency Response Max Level In Trim Range MIC In Connector Type Impedance Load Pad Phantom Power EIN Dynamic Range THD N Frequency Response Max Level In Trim Range Audio Specifications 1 4 Female TRS 100 ohm 123 dB 110 dB 0 0003 0 0 1 dB 20 Hz 20 kHz 20 dBu 24 dB 1 4 Female TS 1 megohm 103 dB 93 dB 0 05 0 1 dB 2 dBu with trim down 10 dBu with trim up 12dB 1 4 Female TRS Complies with EBU R68 SMPTE RP 155 10k ohm 117 dB 110 dB 0 000396 0 0 1 dB 20 Hz 20 kHz 24 dBu 22 dB XLR Male Balanced 3k ohm 4 5k with Pad
7. IEC 3 conductor receptacle Internal Universal 100 V to 240 V 50 Hz or 60 Hz 35 watts 1x 2x With termination DC coupled Unweighted With SRC Tip Left Ring Right A Weighted Unweighted Ref 1 kHz 16 32 55 ohms 0 to 128 dB muted in 1 dB steps THRU is unterminated x1 x2 x4 AC coupled DC coupled lt 0 025 UI For AC mains connection APPENDIX B AUDIO SPECIFICATIONS 8M Line Out Connector Type Output Impedance Dynamic Range THD N Frequency Response Max Level Out Trim Range MICin Connector Type XLR Impedance load Pad Phantom power EIN Dynamic Range THD N Frequency Response Max Level In with Pad Max Level In without Pad Trim range TRS Description Impedance Load Pad Phantom power Dynamic Range THD N Frequency Response Max Level in with Pad Max Level in without Pad Trim range V Limit Compressor Range Phones Connector Type Dynamic Range THD N Drive Frequency Response Trim Range 1 4 Female TRS 100 ohm 123 dB 110 dB 0 0003 0 0 1 dB 20 Hz 20 kHz 20 dBu 24 dB in 1 dB steps Combo style XLR TRS 3 k ohm 4 5 k with Pad 20 dB Switchable per channel 48 v switchable per channel 128 dBu 112 dB 104 dB 0 0 1 dB 20 Hz 20 kHz 24 dBu 5 dBu 0 to 53 dB in 1 dB steps Balanced or single ended 1 meg ohm 20 dB Switchable per channel No 112 dB 102 dB 0 0 1 dB 20 Hz 20 kHz 17 dBu 5 dBu 0 to 53
8. ete MOTU 8pre and or other optical devices 8 channel ADAT optical 1248 back ANANA recording you can use the 12485 on board mixing to listen to what you are recording via the main outs headphone outs or any other output pair You can control all mixing and effects processing from your laptop tablet or smart phone MIC IN GTR ANALOGIN ANALOG OUT MAIN MON S PDIF mi ap Primary studio monitors Other outputs stage monitors surround monitors etc po 2 4 E m 00000000000 pe ACALCAICALSASACAPCACAPGALB EOM FER SUUS WIE 2 OU MONITOR MAIN OUT ANALOG OUT ANALOG rp S PDIF Ethernet cable to another MOTU AVB device a MOTU AVB Switch or WiFi router etc 7 650000000000 enz 00000000000 synths samplers effects units etc Compressor reverb or Thunderbolt ar USB other outboard gear quarter inch analog outs synthesizer Figure 4 6 A typical 1248 studio setup 44 HARDWARE INSTALLATION A TYPICAL 8M SETUP on board mixer to listen to what you are recording Here is a typical 8M studio setup Like the 1248 via the headphone out or any output pair You can this rig can be operated without an external mixer control all mixing and effects processing from your mixing and effects processing can be done in laptop tablet or smart phone the 8M itself on the computer
9. Another way to operate multiple interfaces on the same host computer is to connect the first interface to a Thunderbolt port and the second to a USB 2 0 or 3 0 port Multiple interfaces and USB When connected through USB your MOTU interface operates as a USB 2 0 device even when connected to a USB 3 0 port USB 2 0 provides enough bus speed for several USB 2 0 devices but due to your MOTU interfaces high performance requirements for real time operation and low latency timing we recommend the following m Do not connect more than two units to your computer s USB 2 0 or 3 0 port s m When two units are connected with USB 2 0 dont connect other USB 2 0 or 3 0 devices such as external hard drives m For best results establish clock synchronization with other interfaces connected to the same computer You can use word clock S PDIF or AVB to achieve clock synchronization Mixing and matching audio interfaces In the scenarios just discussed for connecting multiple interfaces you can mix and match the interface with other MOTU audio interface models For example you could connect a 1248 through Thunderbolt and another MOTU audio interface such as a 16A through USB 2 0 39 HARDWARE INSTALLATION SETUP FOR WEB APP CONTROL The MOTU AVB Control web app gives you access to all settings routing mixing and effects processing in your audio interface and each interface on the AVB network if applicabl
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12. 20 dB Switchable per channel 48v Switchable per channel 128 dBu 20 20 kHz 117 dB 110 dB 0 0003 0 0 1 dB 20 Hz 20 kHz 24 dBu 63 dB Balanced tip hot Per leg A weighted 1 dBFS Unweighted 1 kHz Ref 1 kHz 4 dBu to 20 dBu in 1 dB steps Unbalanced A weighted 1 dBFS Unweighted Ref 1 kHz 0 615v to 2 45v 2 dBu to 10 dBu in 1 dB steps Balanced unbalanced Tip hot A weighted dBFS Unweighted Ref 1 kHz 2 dBu to 24 dBu in 1 dB steps Pin 2 hot DIN 45596 IEC 61938 P48 Rs 150 ohm A weighted 1 dBFS Unweighted 1 kHz Ref 1 kHz With pad 0 to 63 dB in 1dB steps 85 S PDIF Connector Type Termination Lock Range Input Voltage Range Output Drive THD N In SRC Specification Phones Connector Type Dynamic Range THD N Frequency Response Drive Trim Range Word Clock In Out Thru Specification Connector Type Termination Lock Range Input Output Jitter Power Supply Connector Type Configuration Power Input Power Usage Includes Sample Rate Conversion SRC on input RCA 75 ohm I O 44 1k 48k 0 5 0 2 Vpp 1Vpp 0 5 0 Vpp With termination 122 dB IEC 958 60968 3 1 4 Female TRS Stereo 108 dB 100 dB 0 0 15 dB 22 Hz 20 kHz Max 80 mw 128 dB AES 11 2009 Annex B BNC 75 ohm in out 44 1 kHz 48kHz 0 596 I vpp to 3 v p p with termination 5 0 vpp 2 5 v p p terminated complies with AES3 4 2009
13. 39 Setup for web app 40 Audio 42 A typical 1248 44 A typical 8M 45 A typical 16 46 Synchronization usa 47 Syncing S PDIF lt 48 Syncing word 48 Syncing an AVB 49 RACK INSTALLATION AND HEAT When installing your MOTU audio interface in a 19 inch rack leave extra space above below behind and on either side of the unit to provide adequate ventilation and heat dispersion Do not install it near other gear that generates excessive heat Hardware Installation THUNDERBOLT AUDIO INTERFACE SETUP Use this setup if you want to use your MOTU device as an audio interface and your computer has Thunderbolt m Useastandard Thunderbolt cable m Place it at the end of the Thunderbolt chain up to six devices in the chain not including the computer m See Software installation on page 33 35 USB AUDIO INTERFACE SETUP SETUP FOR TWO INTERFACES AN e Use this setup if you want to use your MOTU device as an audio interface and your computer doesn t have Thunderbolt m Usea standard USB cable Connect to any USB por
14. Figure 6 3 Buttons on the 16A front panel AUTOMATIC CHANNEL FOCUS When turning the knobs on the 1248 or 8M to adjust the preamp gain on a mic channel the display switches to a larger horizontal meter with numeric readouts for precise setup A few seconds after you stop turning the knob the display returns to the default view PIN CHANNEL FOCUS When viewing a channel s horizontal meter push its knob on the 1248 or 8M to pin the LCD s focus on the large meter view The view is pinned to show the horizontal meter until the active channel s knob is pushed again Switch directly to another channel s horizontal meter by pushing or turning its knob Push the selected channel s knob again to unpin TRIM On the 1248 and 8M push TRIM Figure 6 2 to display the preamp gain settings for all mic inputs simultaneously instead of viewing only the channel you are adjusting You can then use the channel knobs to adjust each channel while viewing its setting relative to the other channels being displayed ID Push ID Figure 6 2 to immediately view the devices network information including its IP Address Push back to return to the meters MENU NAVIGATION Push SELECT or SEL to access the main menu which provides settings and status information Main Menu On the 1248 or 8M turn the SELECT knob to scroll through the menu settings on the left side of the LCD On the 16 push the up down arrow buttons to sc
15. Mix bus with the Main send on the Reverb channel strip item 6 on page 26 Reverb Time Reverb time Figure 8 5 determines the length of decay or tail of the reverb The knob s range is from 100 milliseconds to 60 seconds Predelay Predelay is the amount of time before the acoustic energy from the source returns to the listener after reflecting off the surfaces of the listening space The very first reflections helps you perceive information about the listening space size distance surface type etc In large rooms it takes a while on the order of milliseconds before the first reflections return to the listener Predelay is useful for adding clarity as it delays these reflections before the onset of full reverberation For example with vocals the reflections won t start until after the initial sound of a word has been sung Spread Spread controls stereo imaging A position of 12 o clock produces essentially a mono image Turning the control all the way to the left completely swaps the stereo image High and Mid frequency bands The High and Mid frequency bands let you independently control the reverb time for separate frequency bands relative to the low frequency reverb time The High setting represents the bottom frequency of the High band the Mid 73 MIXER EFFECTS setting represents the bottom frequency of the Mid band The Ratio determines the length for each band specified in a percentage of
16. as a MOTU AVB interface user m An open industry standard AVB has been developed by the IEEE as an international standard specification It is not proprietary or controlled by one company High channel counts AVB provides hundreds of network channels m Extremely low latency AVB guarantees low latency real time performance m Guaranteed Quality of Service QoS AVB s Stream Reservation Protocol provides Guaranteed Quality of Service for each and every audio stream If the network cannot continuously maintain every bit of every sample in the audio stream it will not allow you to make the network connection in the first place AVB streams are prioritized over other network traffic to ensure high performance m Network wide clocking and sync AVB devices all clock together over your network for better than sample accurate phase lock across all connected devices Timing accuracy is down to the nanosecond True plug and play operation AVB has been designed from the ground up to provide automatic device discovery enumeration and connection management Just plug your MOTU AVB interfaces into a standard AVB switch and go If you wish to make stream connections and have the ability to select media clock you must use the Web app or some other AVB controller You don t need an IT professional to configure the network AVB is a self managing network protocol m Bridging to standard Ethernet AVB co
17. gain reduction 71 Guitar connecting 42 Guitar inputs 9 42 Guitar mic inputs connecting 44 45 46 Headphone outputs 9 Headphones connecting 44 45 46 High pass filter 69 Host audio software 3rd party software sync 68 ID knob button 17 18 58 IEEE 802 1 75 Input banks 19 Input settings 18 Inputs analog 10 12 14 optical 10 12 14 S PDIF RCA 10 Installation hardware 35 network 37 38 QuickStart Guide 7 software 34 Thunderbolt interface 36 two interfaces networked 36 USB interface 35 Interface mixer preset 7 54 Internet Explorer 17 IP address 17 iPad QuickStart 7 Latency 65 67 LCD menu 58 Level meters 9 Leveler 21 72 Lightpipe 2x mode 59 Limit button 73 Live recording with monitor mixing preset 99 index 100 7 55 Logic Pro Express 61 clock source 61 sample rate 61 Lookahead 57 M Mac OS X 61 input and output names 63 Makeup gain 73 Mic inputs 42 preamp gain pad 48V 9 Mic guitar inputs 42 connecting 44 45 46 Soft Clip 42 V Limit 42 57 Mixer accessing 21 aux bus 25 effects 69 group bus 26 input channel strip 23 main mix channel strip 24 Monitor channel strip 24 overview 21 Reverb bus 26 schematics 91 Setup 19 stand alone operation 69 Mixing tab 21 Monitor output volume control 9 MOTU AudioDesk 64 AVB Switch 15 AVB Control web app 7 17 26 Aux Mixing tab 22 Device tab 18 19 Mixing tab 21 Routing tab 20 AVB Discovery app 7 34 AVB Installer 7
18. line level signal to the mic inputs without using the 20dB Pad It is recommended you connect line level signals to the quarter inch inputs instead Phantom power If you are connecting a condenser microphone or another device that requires phantom power engage the mic input s corresponding front panel phantom power button Preamp gain The 1248 s preamp provides 63 dB of gain Use the front panel detented trim knobs to adjust gain as needed for each input The LCD provides visual feedback as you turn the trim knob Preamp gain is digitally controlled so you can make fine tuned adjustments in 1dB increments You can also adjust preamp gain in the web app See Device tab on page 18 20 dB pad Each mic input XLR jack is equipped with a 20 dB pad switch to accommodate input signals that could overdrive the input Guitar inputs The 1248 provides two dedicated guitar inputs on its front panel These inputs are specially designed for guitar or bass instruments with a high impedance load of 1 megaohm Use the knob to adjust input trim Mic line instrument combo inputs The 8M provides XLR TRS combo jacks that accept an XLR mic plug or a quarter inch plug from a line level source or guitar Each input provides individual preamp gain pad and 48V phantom power Phantom power is supplied to the XLR connector only Use these general guidelines for the 48V phantom power pad and gain settings on these combo input jack
19. or office network m Any other standard networking device THE MOTU AVB SWITCH The heart of a MOTU AVB network is the MOTU AV B Switch sold separately For a brief overview of the switch and its features see AVB Switch on page 15 80 NETWORKING Part 3 Appendices APPENDIX Some or all of MOTU interface inputs and outputs are not available in my host audio software Make sure that the inputs and outputs are enabled in the Device tab Device tab on page 18 and routed to and from the computer in the Routing tab Routing tab on page 20 For details see Making inputs and outputs available to your host software on page 62 I have absolutely no audio input or output happening to or from my interface Why Make sure that the unit has a stable sample rate the sample rate will flash if the clock hasn t settled yet Try setting the unit s clock source to Internal if you cant sync to any external clock sources Check that audio is working with Internal sync and if so then work on establishing a stable external clock I can t hear computer audio output through my MOTU AVB interface In the Sound panel of System Preferences your MOTU AVB interface should be selected as the output device Almost all applications will use just the first two output channels so make sure that From Computer 1 and From Computer 2 are routed to the physical outputs that you are listening to in the Routing tab e g Phon
20. 24 channels total are being used for streaming to the host computer but more can be added for other inputs from the mixer or AVB network if any WORKING WITH HOST AUDIO SOFTWARE Conversely you can stream audio from the computer into the mixer Channels coming from the computer are represented across the top of the routing grid as inputs route a computer channel to the mixer click the grid at the intersection of the computer channel column and the desired mix input row Now that computer channel will be routed to the mixer input Working with AVB network streams Audio channels going to networked AV B interfaces can be streamed to and from your host audio software through the MOTU interface connected directly to the computer For information about how to set this up see Mapping computer channels to network streams on page 79 Mirroring computer channels to multiple outputs Figure 7 1 shows an example of mirroring one stereo audio stream from your host audio software to several outputs In the example computer channels 1 2 are being sent to the main outs plus phones 1 2 and phones 3 4 To route an input to multiple outputs click multiple boxes in its column see computer channels 1 2 in Figure 7 1 Combining multiple inputs to one output To merge mix any channels in the grid computer streams or otherwise route them to mixer inputs and then use the on board mixer Mixing tab on page 21 Routing
21. 4The Leveler module The Leveler is available on the Main Mix bus and all Group busses including the Reverb bus A model of an optical compressor An optical leveling amplifier works by shining a light on a photoresistor The intensity of the light source is proportional to the audio signal and the resistance of the photoresistor is in turn inversely proportional to the intensity of the light Photore sistors respond quite quickly to increases in light intensity yet return to their dark resistance very slowly Thus incorporation of the photoresistor into an attenuator followed by an amplifier which provides make up gain produces a signal which maintains a constant overall loudness Automatic gain control using light The AGC circuit of the LA 2A uses a vintage opto coupler known by its model number T4 The T4 contains an electroluminescent panel ELP and photoresistor mounted so that the emission of the panel modulates the resistance An ELP consists of a thin layer of phosphorescent material sandwiched between two insulated electrodes to form a capacitor Making one of the electrodes transparent allows the light to escape These devices are essentially glow in the dark paint on a piece of foil covered by metalized glass or plastic and are the same devices used in low power night lights Unfortunately these devices need high voltages to operate and are best driven by tube circuits which can supply voltage swings of several hun
22. RIGHT OF REPLACEMENT IS IN LIEU OF AND YOU HEREBY WAIVE ANY AND ALL OTHER WARRANTIES BOTH EXPRESS AND IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THE LIABILITY OF MOTU PURSUANT TO THIS LIMITED WARRANTY SHALL BE LIMITED TO THE REPLACEMENT OF THE DEFECTIVE DISK S AND IN NO EVENT SHALL MOTU OR ITS SUPPLIERS LICENSORS OR AFFILIATES BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OF USE LOSS OF PROFITS LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES EVEN IF MOTU HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS WHICH MAY VARY FROM STATE TO STATE SOME STATES DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU Update Policy In orderto be eligible to obtain updates ofthe program you must complete and return the attached Mark of the Unicorn Purchaser Registration Card to MOTU Copyright Notice Copyright 2014 by Mark of the Unicorn Inc rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system ortranslated into any human or computer language in any form or by any means whatsoever without express written permission of Mark of the Unicorn Inc 1280 Massachusetts Avenue Cambridge MA 02138 U S A Limited Warranty o
23. a channel label to rename it 13 Audio activity indicators 14 Click the grid to make a connection Click a connection to remove it Click and drag to make or break multiple connections in one gesture 15 In this example analog inputs 7 8 are being routed directly to analog outputs 5 6 Also hardware inputs and outputs are being routed to and from the computer channels which are shown collapsed in this example 16 The Mix In group lets you route audio to the 48 channel mixer 17 These AVB output streams let you route any audio to other devices on the AVB network 18 The To Computer output bank routes any input to host audio software running on your computer Use the Device tab to choose how many computer channels are available 19 Use these triangles to expand or collapse groups of outputs 20 These are the physical outputs on the interface itself 2 MIXING TAB e CONTROLS Legend High Pass Filter Gate EQ Compressor Aux Sends Group Sends MIXER INPUTS Mic 1 Mic 2 Mic 3 Mic 4 Guitar 1 MIXER OUTPUTS Group 1 2 Group 3 4 Group 5 6 Reverb Aux 1 2 Aux 3 Aux 4 Aux 5 6 Aux 7 8 Aux 9 10 Aux 13 14 The Mixing tab gives you full access to the 48 channel mixer in your MOTU AVB interface which provides a main mix bus monitor bus three group busses seven aux busses and a dedicated reverb bus Use the Device tab to config ure how many inputs you wish to work w
24. against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television equipment reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by any combination of the following measures Relocate or reorient the receiving antenna ncrease the separation between the equipment and the receiver Plug the equipment into an outlet on a circuit different from that to which the receiver is connected If necessary you can consult a dealer or experienced radio television technician for additional assistance PLEASE NOTE only equipment certified to comply with Class B computer input output devices terminals printers etc should be attached to this equipment and it must have shielded interface cables in order to comply with the Class B FCC limits on RF emissions WARNING changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment C C Part Getting Started Quick Start Guide Thank you for purchasing a MOTU AVB interface Foll
25. are listed across the top of the routing grid Expand the stream and click on the grid to map incoming network channels to local destinations including physical outputs on the device computer channels to a connected computer or mixer channels Output streams being broadcast to the rest of the network are listed in rows along the left side of the grid Expand each stream bank and map individual network output channels to local sources such as physical inputs on the interface channels coming from the computer or channels coming from the device s mixer MAPPING COMPUTER CHANNELS TO NETWORK STREAMS If a host computer is connected to an interface through Thunderbolt or USB mapping network input and output streams is accomplished as described in the previous two sections Simply enable AVB streams as desired and map them to computer channels in the Routing grid If while mapping you run out of computer channels enable more in the Computer Setup section of the Device tab item 22 on page 19 If the computer is connected with Thunderbolt you can enable a maximum of 128 channels in and out If the computer is connected with USB performance will vary depending on the sample rate and other factors 79 NETWORKING BRIDGING TO ETHERNET The Ethernet port on the MOTU AVB Switch allows you to connect standard network devices such as m AWiFi router m An Ethernet hub or switch connected to a local home studio
26. channels each m Usea standard Thunderbolt cable Place it at the end of the Thunderbolt chain Additional computers are optional All computers and interfaces have full access to each other on the network 7 L m Use standard CAT 5e Ethernet network cables to connect the interfaces to the MOTU Switch using their NETWORK ports m Use the five AVB NETWORK ports on the switch not the Ethernet port m Network cable lengths can be long 100 meters with standard copper wire cables much longer with fiber optic network cables m See About CAT 5e cables on page 36 m Asan alternative see Setup for multiple Thunderbolt and USB interfaces on page 39 m add more computers to the network connect them to any interface as shown All computers and interfaces have full access to each other See chapter 9 Networking page 75 e AVB a SWITCH men aa ln 37 HARDWARE INSTALLATION SETUP FOR A MULTI SWITCH NETWORK You can daisy chain switches in serial fashion Use this setup if you want to connect more than five but don t create loops For example switches A B MOTU interfaces to an extended network that and C below are chained properly but don t employs multiple AVB switches AVB Ethernetisan connect C back to A Alternately you could industry standard so you can use MOTU AVB connect both Switches B and C to Switch A Switch 3rd
27. for the Group and Reverb busses 8 Mute and Solo 9 Usethese menus hardware settings output assignment and presets in a similar fashion as described for the Main Out bus items 3 5 on page 24 1 Interface The 1248 8M and 16 are hybrid Thunderbolt USB2 audio interfaces with 48 channel digital mixers and AVB Ethernet networking capability They can operate as audio interfaces for a computer as stand alone digital mixers as gateways to an expanded studio system as components of an extended AVB audio network or as capable hybrid devices performing all of these roles simultaneously Together they are designed to be a central component of a modern high performance recording studio or live mixing platform The following sections provide a brief overview of their main features and characteristics State of the art A D and D A conversion The analog section of each interface employs state of the art 24 bit DACs and ADCs which deliver analog recording and playback with remarkably high dynamic range at sample rates from 44 1 to 192 kHz Complementary I O configurations Each interface delivers an exceptional array of analog and digital audio In addition the interfaces are designed to complement one another in terms of delivering a wide range of I O options you can mix and match several interfaces and operate them as a unified I O and mixing system The following sections provide a bird s eye gl
28. i Gain Preg Aux busses can be used to create sub mixes An aux bus can be assigned to any output in the Routing grid page 20 To access an Aux bus channel strip go to the mixer tab page 21 reveal the side bar item 3 on page 21 and then show the aux busses you want in the Mixer Outputs section 26 To show and hide the four band EQ section of the channel strip use the Controls section of the side bar item 3 in the mixer tab on page 21 1 Astereo aux bus 2 Amono aux bus 3 Click this dot to toggle an aux bus between mono and stereo 4 Thefour band parametric EQ module for Aux busses operates the same as described for input channels items 10 and 11 on page 23 including High and Low Shelf filter options 5 Aux bus solo and mute 6 Aux bus master fader 7 Click to type specific value manually 8 Click the dB scale numbers to make the fader jump exactly to that level Click and drag horizontally to jump consecutive faders to the same level 9 Adisabled EQ band 10 Use these menus hardware settings output assignment and presets in a similar fashion as described for the Main Out bus items 3 5 on page 24 GROUP AND REVERB CHANNEL STRIPS Group 3 4 Reverb High Gain Freq y n Bandwidth Gain um Freq m Leveler Reduction e m Gain Reduction Spread High 2 m Ratio Group busses can be used to create
29. input or output name in the routing grid Figure 7 1 to change its name These names appear in your host audio software if supported ADAT A To Computer 1 Mic 1 Computer 2 Mic 2 To Computer 3 Mic 3 To Computer 4 Mic 4 Guitar 1 Guitar 2 Analog 1 Analog 2 Analog 3 Analog 4 Analog 5 Analog 6 Analog 7 Analog 8 To Computer 5 To Computer 6 To Computer 7 To Computer 8 To Computer 9 To Computer 10 To Computer 11 To Computer 12 To Computer 13 To Computer 14 To Computer 15 To Computer 16 ADAT A 1 ADAT A 2 ADAT A 3 ADAT A 4 ADAT A 5 ADAT A 6 SPDIF 1 SPDIF 2 To Computer 17 To Computer 18 Computer 19 To Computer 20 To Computer 21 To Computer 22 To Computer 23 To Computer 24 AVB Stream 1 AVS Stream 2 Mix In Streaming computer audio to and from the on board mixer In Figure 7 1 youll see mix inputs across the top of the grid These are output busses from the your interfaces on board mixer To route one of these mix busses to your host computer software click the grid at the intersection of the mix column and desired computer channel row Now the mix bus output will be routed to the computer via the channel you selected ADAT A 1 ADAT A 2 ADAT A 3 ADAT A 4 A 5 6 ADAT A 8 Figure 7 2 An example of routing physical inputs on the 1248 to computer channels for host audio software In this example S PDIF input is on channels 23 24 going to the computer and
30. is served from the audio interface hardware itself it does not require any software installation on your computer all it requires is a network connection between your computer and your MOTU interface with a standard Ethernet cable Ethernet hub or shared WiFi network For details about accessing the web app through the network port see MOTU AVB Control Web App on page 17 In this scenario your MOTU interface provides basic audio input and output and no software driver installation is necessary Software Installation If you wish to use Thunderbolt drivers and or the host served web UI with your MOTU interface you can certainly do so Simply follow the software installation instructions below SOFTWARE INSTALLATION Software installation is required for any of the following scenarios You will use your MOTU device as a Thunderbolt audio interface with your laptop or desktop computer You will use your MOTU device as a USB audio interface and you want to access the Web app without the network port m You wish to use the included AudioDesk workstation software m You will be using multiple MOTU interfaces If none of the above scenarios apply to you then you can skip software installation if you wish as explained in the USB 2 0 class compliant operation Run the software installer before connecting your MOTU interface to your computer If you wish to proceed with software installation we recommend that
31. needed for AVB networking When working with multiple MOTU AVB interfaces on an AVB network synchronization is handled by AVB so no word clock connections are necessary See the next section for details 48 HARDWARE INSTALLATION SYNCING AN AVB NETWORK The AVB protocol provides sophisticated and accurate timing synchronization and clocking features for AVB device networks of any size as shown on pages 37 38 including m Low latency m Network wide time base m Better than sample accurate phase lock across all connected devices m Timing accuracy down to the nanosecond Choosing a master clock The Web app provides an easy way to choose one device as the master clock for your whole MOTU AVB network 1 Goto the Devices tab page 18 2 In the device list item 1 on page 18 choose the MOTU interface you wish to use as the clock master 3 Click the Become Clock Master button below the Clock Mode menu Now all other MOTU AVB devices on the network are resolved to this device Configuration sample Rate 48000 Clock Mode Internal Clock Status Become Clock Master Input Settings Figure 4 13 Choosing a clock master Alternately you can go to the clock mode menu for each individual device separately and choose the master clock device by hand For example you may be in a situation where at least one MOTU device on the network must remain resolved to its own clock or another clock
32. party AVB switches WIENSSOE Spo pary m For further information see chapter 9 Networking page 75 Additional switches interfaces and computers MOTU AVB SWITCH pa TU AVB SWITCH Switch B MOTU AVB SWITCH Switch C 38 HARDWARE INSTALLATION 1 B y SETUP FOR MULTIPLE THUNDERBOLT AND USB INTERFACES It is possible to connect multiple MOTU interfaces directly to your host computer through multiple Thunderbolt and USB ports as discussed in the following sections However there are several disadvantages to doing it this way m The audio interfaces will not be clocked to one another and may be susceptible to drift unless you use external word clock connections When using the AVB network connections shown on pages 36 38 the interfaces are very tightly synchronized with each other through their network connections measured in pico seconds You will not be able to route audio directly from one audio interface to another When using the AVB network connections shown on pages 36 38 you can route audio streams hundreds at a time directly among interfaces with near zero latency Connecting multiple interfaces using Thunderbolt If your host computer has two or more Thunderbolt ports you can connect one interface to each port either directly or at the end of a Thunderbolt daisy chain on either port or both ports Connecting multiple interfaces using Thunderbolt and USB
33. position interfaces at strategic locations Running cables becomes much simpler and more cost effective Not only does a setup like this give you access to all I O from your computer even multiple computers you can also route audio from any input to any output across devices with near zero latency You can also route audio from one computer to another with very low latency As a simple example you could deploy several interfaces in a studio as follows Interface Location Purpose 1248 Control room General I O in control room out puts to main speakers etc 1248 Iso booth Local mic and instrument I O in the iso booth 1248 Studio room General purpose I O for studio A 8M Studio room More mic inputs or additional mic inputs for drum kit 8M Studio room 8 more mics on the drum kit drum kit 16A Machine room Analog 1 and patch bay for rack mounted gear Large studio facility In a larger studio facility you could build audio network neighborhoods similar to the studio installation described earlier in multiple rooms even multiple floors with multiple computers and WiFi control from anywhere in the facility computers and devices can see each other and you can stream audio anywhere on the network with near zero latency as if any two devices were connected directly to each other Concert systems Concert systems must be flexible so they can adapt to each new venue while on tour Because of its modular nature AV B net
34. replacement parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 22 Safety Check Upon completion of any service or repairs to this MOTU product ask the service technician to perform safety checks to determine that the product is in safe operating conditions ENVIRONMENT HEAT AND VENTILATION Operating Temperature 10 C to 40 C 50 F to 104 The product should be situated away from heat sources or other equipment that produces heat When installing the product in a rack or any other location be sure there is adequate space around the product to ensure proper ventilation Improper ventilation will cause overheating and can damage the unit TO REDUCETHE RISK OF ELECTRICAL SHOCK OR FIRE Do not handle the power cord with wet hands Do not pull on the power cord when disconnecting it from an AC wall outlet Grasp it by the plug CA U TI O N Do not expose this apparatus to rain or moisture Do not place objects containing liquids on it RISK OF ELECTRIC SHOCK AC INPUT DO NOT OPEN 100 240VAC 50 60Hz 0 5A max Contents Part 1 Getting Started 31 33 35 Quick Start Guide 1248 Front Panel 1248 Rear Panel 8M Front Panel 8M Rear Panel 16A Front Panel 16A Rear Panel MOTU AVB Switch MOTU AVB Control Web App About Your MOTU AVB Audio Interface Packing List and System Requirements Software Insta
35. the web app do any of the following m From your computer choose your MOTU interface from the MOTU AVB Discovery app menu as shown below If you have multiple interfaces choose the one you want lt E 11 05 AVB Devices m From your iPad iPhone launch the MOTU AV B Discovery app From any web browser on any host computer tablet etc type in the IP address or localname of your MOTU AVB interface See below for how to obtain the IP address You should now see the MOTU AVB Control web app in your browser as shown on page 18 If not visit Appendix A Troubleshooting page 83 Obtaining your MOTU device s IP address On the front panel of the interface push the ID knob or button once The LCD now displays the units IP address which should look something like this IP Address 192 168 1 209 17 DEVICE TAB New Update Avallable 1 0 0 Configuration Quick Setup 1H Mixing e A Aux Mixing Launch Quick Setup Sample Rate 48000 DEVICES Internal Input Settings Mic 2 Mic 4 Guitar 1 Guitar 2 Trim Trim Trim Mic Inst 1 Mic Inst 2 Mic Inst 3 Mic In Analog2 Analog3 4 Analog5 Analog6 gt Analog7 Analog 8 Trim Trim e e Trim Trim Trim Trim ee Output Settings Phones 1 2 Phones 3 4 Main 1 2 Monitor 1 2 Analog 1 Analog 2 Analog 3 Analog 4 Analog 5 Analog 6 Analog 7 Analog
36. to 24dBu in 1dB steps Outputs can be trimmed at the digital stage before the DAC Range is 16 dB Trim controls are most easily accessed in the web app See Device tab on page 18 Trim settings can also be accessed in the LCD menu Optical Your MOTU audio interface provides two banks of optical lightpipe connectors Each bank provides an input and output connector Together they provide 16 channels of ADAT optical digital I O at 44 1 or 48 kHz or 8 channels at 88 2 or 96 kHz The optical ports are disabled when the interface is operating at a 176 4 or 192 kHz Choosing a clock source for optical connections When connecting an optical device make sure that its digital audio clock is phase locked in sync with your MOTU interface as explained in Synchronization on page 47 There are two ways to do this Resolve the optical device to your MOTU interface B Resolve your MOTU interface to the optical device For A choose Internal or anything other than ADAT A or B as the clock source in the Device tab page 18 For B choose either ADAT A or ADAT B as the clock source page 18 Be sure to choose the optical port that the device is connected to Using word clock to resolve optical devices If the optical device has word clock connectors on it you can use them to synchronize the device with your MOTU interface See Syncing word clock devices on page 48 S PDIF with sample rate conver
37. to choose an audio clock master as explained in Be sure to choose a digital audio clock master on page 47 In the simplest case you have two devices and one is the word clock master and the other is the slave as shown below in Figure 4 11 and Figure 4 12 Master Eee 1248 Word clock OUT Word clock IN Other device Figure 4 11 Slaving another digital audio device to your MOTU device a 1248 in this example via word clock For the 1248 clock source choose any source besides word clock as it is not advisable to chain word clock Audio Word clock master device clock ERE OR Master R Word clock OUT Word clock IN EH 1248 Figure 4 12 Slaving your MOTU device a 1248 in this example to word clock For the 1248 clock source choose Word Clock In Daisy chaining word clock If necessary you can daisy chain several word clock devices together When doing so connect WORD CLOCK OUT from the first master device to the WORD CLOCK IN on the second device Then connect its WORD CLOCK THRU port to the next devices WORD CLOCK IN port and so on On your MOTU interface use its WORD CLOCK OUT port and change its operation from OUT to THRU in the front panel LCD See Settings menu on page 59 If you have more than four word clock devices that you need to synchronize avoid chaining their word clock connections Instead use a word clock distribution device of some kind Word clock is not
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39. you run the software installer before you connect your MOTU interface to your computer and power it on This ensures that all USB and Thunderbolt driver components are properly installed in your system 33 RUN THE AUDIO INSTALLER To download the latest MOTU AVB installer visit www motu com avb Follow the directions that the installer gives you CORE AUDIO DRIVERS Core Audio refers to the software technology built into Mac OS X that provides all of its audio features More specifically we use Core Audio to refer to Mac OS X s standard audio driver model The MOTU Core Audio driver provides multi channel audio input and output with any Mac OS X Core Audio compatible software For details about accessing the Core Audio driver for your MOTU AVB interface refer to your host software documentation or see chapter 7 Working with Host Audio Software page 61 MOTU AVB DISCOVERY APP The Discovery app is installed in your Macs applications folder It locates all MOTU AVB interfaces connected to the computer either directly through Thunderbolt USB or on your network and displays them in a list Double click an interface to access its settings through the web app MOTU AVB Control Web App on page 17 AUDIODESK WORKSTATION SOFTWARE AudioDesk is an advanced workstation software package that lets you record edit mix process bounce and master multi track digital audio recording projects Adva
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41. 1 STEREO INPUT CHANNEL POST FX 2 gt SOLO BUS MUTE 2 FADER 2 2 W SEND 17 y SEND 1 2 2 1 MAIN GROUP MONO MIX REVERB AUX STEREO AUX 92 APPENDIX C MIXER SCHEMATICS GROUP BUS 2 2 LEVELER 2 p 2 gt SOLO BUS MUTE 2 FADER 2 2 2 SEND SEND y SEND 1 2 1 MAIN GROUP MONO OUT MIX REVERB AUX STEREO AUX 93 APPENDIX MIXER SCHEMATICS MONITOR BUS SOLO lig d AUX1 eee AUX7 e SOLO o SOLO BUS o SOLO SELECT 2 SOLO MAIN AUX eee GROUP e ee REVERB 2 2 2 2 MONITOR ASSIGN ANY e NONE SOLOED SOLOED FOLLOW SOLO ON amp FOLLOW SOLO OFF 2 MONITOR OUT 94 APPENDIX C MIXER SCHEMATICS APPENDIX D MOTU periodically posts firmware updates for your MOTU AVB interface These updates may include bug fixes enhancements and new features Updates are posted on MOTUS servers If your computer or Wi Fi device has access to the internet the MOTU AVB Control app notifies you as soon as an update is made available Otherwise you can check motu com avb periodically for the latest firmware update A network cable connection is required Firmware updating requires a network cable connection so before you begin connect a standard CAT 5 or CAT 6 network cable from the network port on your MOTU interface to one of the following m Your comput
42. 104 a qe J94bly e sa qe 9 y 10 96 y papjalys asn suon eauuo Ylomyau usu M 310N sajeuiunji 13199 ayi Hod e 0 gt SI 3146616 e uauM 2104 10 fne euis ayes pu 5031 jaued quo ayi y suone upads ayi 0 suuojuo eu Ajddns Jamod Aue asn ue nok Kjayeusay y Ajddns Jamod 20 AGL ayi E any Hoddhns jou 90 JI uod SIU 0 SIDIASP GAY PAULO JON DO OMJaU 20 J9 NO4 4 1M a31Aap 1944943 991 001 01 pJepuejs e p auuo 0 pasn aq ue yod 51 77 IO L OOL OL 0 SAV VS O ASL 8 Konn D op JAY Kued puu y YOMJAU J9U1943J JO H IM D1A9P UY Us GAY Kued pic y m 110M 9U ay puajxe 01 JAY NLOW Jayouy m VOL pue W8 gpcL seau GAY NION m Gutmoj oy ayi Jo Aue 32auuo 03 sod YYOMLIN gAV 1108616 asayd L YIUMS JAV NLOW AVB Control Web App OVERVIEW MOTU AVB Control is a web app that gives you complete control over your MOTU audio interface If you have several interfaces networked together such as the 1248 and 8M you can control them all If you are working with a large scale network of many MOTU AVB interfaces you can access and control any device on the network IT S NOT ON YOUR HARD DRIVE The MOTU AVB Control web app i
43. 1248 8M 16A MOTU AVB Switch User Guide C MM MOTU 1280 Massachusetts Avenue Cambridge MA 02138 Business voice 617 576 2760 Business fax 617 576 3609 Web site www motu com Tech support www motu com support SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS FOR THE 1248 8M 16A and MOTU AVB SWITCH PRODUCT CAUTION READ THIS SAFETY GUIDE BEFORE YOU BEGIN INSTALLATION OR OPERATION FAILURE TO COMPLY WITH SAFETY INSTRUCTIONS COULD RESULT IN BODILY INJURY OR EQUIPMENT DAMAGE A HAZARDOUS VOLAGES CONTACT MAY CAUSE ELECTRIC SHOCK OR BURN TURN OFF UNIT BEFORE SERVICING WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE CAUTION TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING DO NOT PERMIT FINGERS TO TOUCH THE TERMINALS OF PLUGS WHEN INSTALLING OR REMOVING THE PLUG TO OR FROMTHE OUTLET WARNING IF NOT PROPERLY GROUNDED THE MOTU PRODUCT COULD CAUSE AN ELECTRICAL SHOCK The MOTU product is equipped with a three conductor cord and grounding type plug which has a grounding prong approved by Underwriters Laboratories and the Canadian Standards Association This plug requires a mating three conductor grounded type outlet as shown in Figure A below If the outlet you are planning to use for the MOTU product is of the two prong type DO NOT REMOVE OR ALTER THE GRO
44. 17 33 AVB Switch setup 37 41 Digital Performer 64 N Networking 75 80 installation 37 38 MOTU AVB Switch 15 Nuendo 61 clock source 61 Mac OS X 64 sample rate 61 O Optical 2x mode 59 connectors 10 12 14 43 Optical converter mode 59 setup example 56 Optical Converter preset 7 56 Optimization 67 OS X audio software clock source 61 sample rate 61 OSC support 97 Output banks 19 Output settings 18 Outputs analog 10 12 14 optical 10 12 14 S PDIF TOSLink 10 Packing list 31 Pad 42 Patch thru latency 67 Performance 67 Phantom power 42 Phase lock 47 Phone outputs 9 Power switch 9 PRE switch 21 PreDelay 73 Prefader button 22 Presets 7 18 Mixer tab 21 overview 53 Routing tab 20 Pro Tools 61 Processing 69 Q 70 Quick Setup window 7 QuickStart Guide 7 R Ratio Compressor 71 Reaper 61 65 Reason 61 Record 61 Registration 31 Release Compressor 70 71 Remote control through OSC 97 Restore Factory Presets 19 Reverb 73 74 design section 73 enabling disabling 73 predelay 73 routing to from 73 time 73 74 width 74 RMS mode 71 Routing tab 20 S MUX 59 S PDIF 29 connection 43 optical 10 12 14 RCA 10 sync 48 Safari 17 Sample rate 18 Sample rate conversion 43 Samplers connecting 44 45 46 SC button 24 Schematics 91 Soft Clip 42 Software installation 34 Software installer 7 17 33 Solo bus 24 Solo Clear button 23 Soundtrack Pro clock source 61 sam
45. 2 From Computer 3 From Computer 4 From Computer 5 From Computer 6 Analog 1 Analog 2 Analog 3 Analog 4 Analog 5 Analog 6 Analog 7 Analog 8 SPDIF 1 SPDIF 2 ADAT A From Computer 7 From Computer 8 From Computer 7 From Computer 8 Analog 7 Analog 8 From Computer 11 From Computer 12 From Computer 17 From Computer 18 AVB Stream 1 AVB Stream 2 Mix In BREE EERE EERE REE ee 666 The Routing Tab lets you route inputs to outputs Outputs are listed by row on the left inputs are listed in columns across the top Simply click in the grid to make a single connection Click and drag to make multiple connections in one gesture To route a single input to multi ple outputs make multiple connections vertically in the same column below the input mix multiple inputs to the same output you ll need to use the mixer page 21 and the Mix n bank in the routing tab 16 1 Inits collapsed form shown here the sidebar displays icons for each tab 2 Click this icon to view the Routing tab shown on this page 3 Click here to show or hide the sidebar 4 Create save recall and manage routing presets 5 Outputs are listed in rows on the left 8 When you make a connection the source input signal is listed by name here in the Source column just to the right of the output it is being routed to Inputs are listed in columns across the top of the grid starting with the physical inputs on the ha
46. 8 Trim Trim e 1 Ifyou have two or more MOTU AVB 7 Lets you create save recall and 12 If an update is available for your network Click this button to choose interfaces the Device list lets you manage presets for your MOTU AVB device and the computer you are the current interface 1 as the Choose the one you are currently interface These presets capture and viewing it from is connected to the master clock source controlling with the web app recall the complete state of the internet you ll be notified here Click device all settings in all tabs More Info to learn what s new and 16 The Input Settings section provides 2 The Aux Mixing tab lets you view start the update process gain settings for inputs plus phase each Aux bus in the mixer one at a 8 Choose the desired sample rate invert for mic and guitar inputs if time 13 Choose the clock source from the any You can also toggle the 48V 9 The Quick Setup button prompts Clock Mode menu Your MOTU device phantom power and 20 dB pad for 3 The Mixing tab gives you access to factory presets used to configure will resolve its digital clock to this the mic inputs the mixing and DSP in the interface your interface for a specific applica master source See Synchroniza tion See Chapter 6 for details tion on page 47 and other clock 17 The Output Settings section lets you 4 The Routing tab displays a grid related topics on pages 48 49 adjus
47. AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO TWO 2 YEARS FROM THE DATE OF THE ORIGINAL RETAIL PURCHASE OF THIS PRODUCT THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHERS ORAL OR WRITTEN EXPRESS OR IMPLIED No MOTU S amp S dealer agent or employee is authorized to make any modification extension or addition to this warranty MOTU S amp S ARE NOT RESPONSIBLE FOR SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR UNDER ANY LEGAL THEORY INCLUDING LOST PROFITS DOWNTIME GOODWILL DAMAGE OR REPLACEMENT OF EQUIPMENT AND PROPERTY AND COST OF RECOVERING REPROGRAMMING OR REPRODUCING ANY PROGRAM OR DATA STORED IN OR USED WITH MOTU S amp S PRODUCTS Some states do not allow the exclusion or limitation of implied warranties or liability for incidental or consequential damages so the above limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state MOTU AudioDesk Mark of the Unicorn and the unicorn silhouette logo are trademarks of Mark of the Unicorn Inc Thunderbolt and Thunderbolt logo are trademarks of Intel Corporation in the U S and or other countries This equipment has been type tested and found to comply with the limits for a class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection
48. AT SMUX Type on page 59 Configure IP Chooses between DHCP and a manually assigned IP Address LCD Contrast Adjusts the contrast of the LCD Factory Defaults Restores factory default settings Presets menu The Presets menu lets you recall settings that have been saved as a device preset Use the web app to create and save presets item 7 in the Device tab on page 18 Version menu The Version menu displays firmware version information CLOCK The Clock section of the LCD displays the sample rate at which the unit is currently operating and the current Clock Mode setting item 13 in the Devices tab on page 18 The Clock Mode setting can also be found and changed in the Settings Menu ADAT SMUX TYPE When your MOTU interface is operating at either 88 2 or 96 kHz the Settings menu Optical setting lets you configure ADAT SMUX type There are two choices a I interoperation with 3rd party SMUX compatible hardware products m Type interoperation with compatible MOTU products STAND ALONE OPERATION settings including mix settings and device settings are saved in your MOTU interfaces memory They remain in effect even when the interface is not connected to a computer This allows you to use your MOTU device as a stand alone mixer You can make adjustments to any setting at any time from the web app running on a device that has a network connection to your MOTU interface as explaine
49. AVB support using the network connectors m All computers and interfaces on the network have full access to each other MOTU employs a 1 Gbit AVB implementation in its rack interfaces and the Switch The switch allows routing of many audio channels while maintaining low latency SETTING UP A MOTU AVB INTERFACE FOR NETWORKING Each MOTU AVB interface has the ability to broadcast up to sixteen 8 channel streams to the rest of the network Conversely it can listen to as many as sixteen 8 channel streams from anywhere else in the network For each device on the network set it up for network operation as follows 1 In the MOTU AVB Control web app choose the device item 1 on page 18 2 Goto the Device tab item 5 on page 18 go to the AVB Stream Setup section item 25 on page 19 and type in the number of 8 channel input and output streams you want for that device 3 Gotothe AVB Stream Connections section 1tem 9 on page 19 and choose the network stream you want the device to listen to for each bank 4 Use the Routing tab to map specific I O channels within each MOTU AVB interface to its network input and output streams as explained in the next section MAPPING AUDIO TO NETWORK STREAMS Once you ve configured a device s AVB streams as explained above use the Routing tab page 20 to map audio channels to network input and output streams Input streams coming from the rest of the network
50. Make hardware and network connections on page 17 Web app control over USB or Thunderbolt If your audio interface is connected a computer with internet access through USB or Thunderbolt as shown on page 35 and 36 you can access the web app from the computer or any other device on the network In this case make sure you ve run the software installer page 33 which installs drivers that allow your computer to properly communicate with the device Web app control through standard Ethernet Your MOTU interface can also be controlled by the web app running on any device that has a standard Ethernet connection to the interface either directly with a network cable through an Ethernet hub or through WiFi on your local network The sections on the opposite page show you how to set up each of these connection scenarios 40 HARDWARE INSTALLATION Ethernet cable A simple Ethernet cable connection can be used for web app control even without a USB or Thunderbolt connection to your computer For example if you are using your MOTU device as a mixer or audio router you could control the on board routing mixing and effects from the web app through a standard Ethernet connection ja Network port Network port Standard Ethernet cable Figure 4 2 Web app control through a simple Ethernet cable Ethernet hub or network LAN In this scenario both your laptop and your MOTU device are connected to a standard Ethernet
51. UNDING PRONG IN ANY MANNER Use an adapter as shown below and always connect the grounding lug to a known ground It is recommended that you have a qualified electrician replace the TWO prong outlet with a properly grounded THREE prong outlet An adapter as illustrated below in Figure B is available for connecting plugs to two prong receptacles Figure Figure B Grounding lug Screw b a Make sure this is connected to 3 prong pl prong pug 3 prong plug 3 known ground Grounding prong Properly grounded 3 prong outlet EES Adapter WARNING THE GREEN GROUNDING LUG EXTENDING FROM THE ADAPTER MUST BE CONNECTED TO A PERMANENT GROUND SUCH AS TO A PROPERLY GROUNDED OUTLET BOX NOT ALL OUTLET BOXES ARE PROPERLY GROUNDED lf you are not sure that your outlet box is properly grounded have it checked by a qualified electrician NOTE The adapter illustrated is for use only if you already have a properly grounded two prong receptacle Adapter is not allowed in Canada by the Canadian Electrical Code Use only three wire extension cords which have three prong grounding type plugs and three prong receptacles which Will accept the MOTU product plug IMPORTANT SAFEGUARDS 1 Readthese instructions All the safety and operating instructions should be read before operating the product 2 Keep these instructions These safety instructions and the product owners manual should be retained for future reference 3 Heedall warnings All warnings on the
52. Working with Host Audio Software RUN THE WEB APP Before you run your host audio software launch the web app to configure your MOTU hardware The web app lets you configure important settings in your audio interface enable the desired inputs and outputs and set up audio streams to and from the computer Sample rate Choose the desired sample rate for your interface and your host audio software Newly recorded audio will have this sample rate Clock Mode This setting is important because it determines the master digital audio clock for your system If you do not have any digital audio connections to your MOTU device you are using the analog inputs and outputs only and you will not be resolving your host software to word clock or another external clock source choose Internal If you have devices connected to the optical ports see Choosing a clock source for optical connections on page 43 If you are slaving your MOTU device and your host software to word clock follow the directions in Syncing word clock devices on page 48 Enabling and disabling input output banks In the web app Device tab page 19 enable all input and output banks on your MOTU device that you wish to make available to your host audio software Disable banks you are not using to simplify operation 61 Specifying the number of computer channels In the web app Device tab page 19 in the Computer Setup section specify the number of comp
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54. a mix sub group which is a set of inputs you wish to control together as a group Groups differ from aux busses in that they have aux sends a reverb send as well as a main mix send In addition group busses are equipped with the Leveler The Reverb bus is a special group bus that provides a reverb processor If you disable the reverb the reverb bus functions as a fourth regular group bus To access the Group and Reverb bus channel strips go to the mixer tab page 21 reveal the side bar item 3 on page 21 and then show the desired Group busses or Reverb bus in the Mixer Outputs section 26 To show and hide the four band EQ section of the channel strip use the Controls section of the side bar item 3 in the mixer tab on page 21 1 A Group bus channel strip Click the name to rename it Delete the current name to return to its default 2 The Reverb bus If you disable the Reverb processor it can be used as a fourth Group bus The Reverb channel strip is twice as wide as other mixer channel strips to accommodate the Reverb processor controls 3 Group busses and the Reverb bus are always stereo 4 The four band parametric EQ module for Group busses and the Reverb bus operates the same as described for input channels items 10 and 11 on page 23 including High and Low Shelf filter options 5 The Reverb processor For complete infor mation see Reverb on page 73 6 Main Mix sends 7 Master faders
55. actual click wrap license agreement the terms of the click wrap agreement prevail YOU MAY a use the enclosed program on a single computer b physically transfer the program from one computer to another provided that the program is used on only one computer at a time and that you remove any copies of the program from the computer from which the program is being transferred c make copies of the program solely for backup purposes You must reproduce and include the copyright notice on a label on any backup copy YOU MAY NOT a distribute copies of the program or the documentation to others b rent lease or grant sublicenses or other rights to the program c provide use of the program in a computer service business network time sharing multiple CPU or multiple user arrangement without the prior written consent of MOTU d translate adapt reverse engineer decompile disassemble or otherwise alter the program or related documentation without the prior written consent of MOTU MOTU warrants to the original licensee that the disk s on which the program is recorded be free from defects in materials and workmanship under normal use for a period of ninety 90 days from the date of purchase as evidenced by a copy of your receipt If failure of the disk has resulted from accident abuse or misapplication of the product then MOTU shall have no responsibility to replace the disk s under this Limited Warranty THIS LIMITED WARRANTY AND
56. am Connections 19 Stream Setup 19 streams Routing tab 20 Switch setup 37 41 AVB Control web app 7 17 26 Aux Mixing tab 22 Device tab 18 19 Mixing tab 21 Routing tab 20 Switch 15 B Balanced analog 42 Become Clock Master 18 49 C CAT 5e 6 cables 15 36 Check for Updates 19 Chrome 17 Class compliance 33 Clock section LCD 9 59 Clock source 18 47 Coax 29 Cockos Reaper 65 Compressor effect 21 71 Computer Setup 19 Condenser mic input 42 Connecting multiple interfaces 36 Control surface support through OSC 97 Converter mode setup example 56 Core Audio defined 34 Cubase 61 clock source 61 Mac OS X 64 sample rate 61 Customer support 84 DAT connecting 44 45 46 Device tab 18 19 Digital converter see Optical converter Digital Performer 61 64 Direct hardware playthrough 65 Direct ASIO monitoring 65 Direct hardware playthrough 65 Driver installation 7 17 33 Drivers installing USB drivers 34 DSP effects 69 meter 74 resources 74 DSP Usage 23 74 Dynamic mic 42 E Effects 69 EQ 70 enabling 70 filter types 70 frequency 70 gain 70 Q 70 Ethernet connecting 41 Ethernet cables 15 Expansion 36 F Firefox 17 Firmware updates 18 Follow Solo 21 24 Four band EQ 70 Frequency EQ 70 From Computer 20 Front panel 57 menu navigation 58 metering 57 G Gain EQ 70 reduction 71 reduction Leveler 73 GarageBand 61 64 clock source 61 sample rate 61 Gate effect 21 70 GR
57. ance of the I O configurations offered by each interface in the AVB family Each interface provides a variety of analog and digital interconnects all active simultaneously designed to provide everything you need for a well equipped recording studio About Your MOTU AVB Audio 1248 66 simultaneous audio channels Connection Quarter inch analog on bal unbal TRS Mic inputs with individual preamps on XLR Hi Z guitar inputs Headphone output ADAT optical digital at 44 1 or 48 kHz RCA S PDIF digital up to 96 kHz with SRC Total 8M 50 simultaneous audio channels Connection Quarter inch analog on bal unbal TRS Mic guitar inputs on combo XLR TRS Headphone output ADAT optical digital at 44 1 or 48 KHz Total 16A 64 simultaneous audio channels Connection Quarter inch analog on bal unbal TRS ADAT optical digital at 44 1 or 48 KHz Total Network Input 16 stereo 32 Input 24 Input 16 16 32 Output 12 2 x stereo 16 stereo 34 Output 8 stereo 16 26 Output 16 16 32 Each interface is also capable of handling 128 channels of network audio input and output for an additional 256 simultaneous audio channels 27 Universal connectivity The 1248 16A and 8M can connect to a computer with Thunderbolt or high speed USB 2 0 which is compatible with USB 3 0 They are USB audio class compliant which means that they are iPad compa
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59. ctory reset my device Push the SELECT knob button to enter the main menu Navigate to Settings gt Factory Default and push the SELECT knob button twice to reset I can t authenticate AudioDesk When authenticating AudioDesk the OK button does not become active until you have entered in your name and a valid keycode Your name must contain at least three characters and you must enter the keycode exactly as it appears on the jacket of your AudioDesk installer disc If you continue to have difficulties try repairing Mac OS X disk permissions using Disk Utility 83 84 I hear clicks and pops under word clock sync Many problems result from incorrect word clocking It is essential that all digital devices in the system be word locked Consult Synchronization on page 47 for detailed information on how to word clock your gear Whenever there is any unexpected noise or distortion suspect incorrect word lock Clicks and pops due to hard drive problems If you have checked your clock settings and you are still getting clicks and pops in your audio you may have a drive related problem Set your Clock Source to Internal and try recording just using the analog inputs and outputs on your MOTU interface If you encounter the same artifacts you may want try using another drive in your computer Clicks and pops can also occur when the drive is severely fragmented or there are other drive related issues Connecting or poweri
60. d hide output busses here 27 Show hide all busses with one click 28 Same as 25 above 29 Show and hide inputs here 30 Show hide all inputs with one click AUX MIXING TAB e AUX MIX TARGET Aux 1 2 Aux 3 4 Aux 5 6 Aux 7 8 Aux 9 10 11 12 13 14 Group 1 2 Group 3 4 Group 5 6 Reverb MIXER INPUTS Mic 1 Mic 2 Mic 3 Mic 4 Guitar 1 Guitar 2 Analog 1 Analog 2 Analog 3 GROUPS Group 1 2 6 6 Group 3 4 Group 5 6 Reverb The Aux Mixing tab provides quick access to your MOTU AVB interface s mix busses aux busses groups and reverb bus viewed one at a time Choose a bus in the Aux Mix Target section and then use the faders to directly mix the send levels from all mixer inputs groups and the reverb bus 1 Shows and hides the Mixer Setup sidebar 3 which lets you show and hide channels 2 The Aux Mixing tab shown on this page gives you access to the Aux busses and groups in the mixer Usethe Aux Mix larget sidebar to control which aux bus or group you are currently viewing You can also show hide inputs and group sends Click the aux bus or group you wish to view in the window In this example Aux bus 1 2 is being displayed These are mixer inputs aux sends from each mixer channel To include an input in the aux bus mix simply bring up its fader These are group bus faders Thisis the mixer s reverb b
61. d in Setup for web app control on page 40 THE FRONT PANEL LCD 60 THE FRONT PANEL LCD CHAPTER 7 OVERVIEW Your MOTU interface provides multi channel audio input and output for Core Audio compatible audio applications including MOTUS Digital Performer and AudioDesk Apple s Logic Pro and GarageBand and other third party software applications such as Ableton Live Avid Pro Tools Cockos Reaper Propellerhead Reason and Record Steinberg Cubase and Nuendo PreSonus Studio One Bitwig and others AudioDesk is included with your MOTU system For complete information about all of AudioDesk s powerful workstation features refer to the AudioDesk User Guide pdf included in the AudioDesk application Digital Performer MOTU s state of the art digital audio workstation software is available separately for details about upgrading from AudioDesk to Digital Performer talk to your authorized MOTU dealer or visit MOTU com PreparallOlioss cese oo HAT ERE 61 Run the WED app ur 61 Choosing the MOTU Audio driver 64 Reducing monitoring latency 65 Working with on board mixing and effects 68 Synrichirorizatoli EEN 68 PREPARATION Install your host audio software first if you haven t already done so and complete these chapters before proceeding Chapter 4 Software installation page 33 m Chapter 5 Hardware Installation page 35
62. dB in 1 dB steps 9dB 1 4 Female TRS Stereo 102 dB 92 dB Max 80 mw 0 0 27 dB 20 Hz 20 kHz 128 dB muted to 0 in 1 dB steps Balanced Tip hot Per leg A weighted 1 dBFS Unweighted 1 kHz Ref 1 kHz 4 dBu to 20 dBu Pin 2 hot tip hot DIN 45596 IEC 61938 P48 XLR Terminated A weighted Unweighted Ref 1 kHz V Limit starts at 17 dBu V Limit starts at 4 dBu Suitable for line or instrument guitar differential A weighted dBFS Unweighted Ref 1 kHz V Limit starts at 7 dBu V Limit starts at 3 dBu Tip Left Ring Right A Weighted Unweighted 16 32 55 ohms Ref 1 kHz 87 APPENDIX B AUDIO SPECIFICATIONS Word Clock In Out Thru Specification Jack Type Termination Lock Range Input Output Jitter Power Supply Configuration Power Input Connector Type Power Usage AES 11 2009 Annex B BNC 75 ohm in out 44 1 kHz 48 kHz 0 5 l vppto3vp p with termination 5 0 vpp 2 5 v p p terminated Complies with AES3 4 2009 Internal universal 100 V to 240 V 50 Hz or 60 Hz IEC 3 conductor receptacle 35 watts THRU is unterminated x1 x2 x4 AC coupled DC coupled lt 0 025UI For AC mains connection APPENDIX B AUDIO SPECIFICATIONS 16A Line Out Connector Type Output Impedance Dynamic Range THD N Frequency Response Max Level Out Trim Range Line In Specification Connector Type Impedance Load Dynamic Range THD N Frequ
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64. dred volts Response characteristics Once the light has faded away the photoresistor then decays back to its dark state The shape of the decay curve varies depending on how bright the light was and how long the light lasted A general rule of thumb is that the louder the program the slower the release Typically the release can take up to and over one minute One thing to keep in mind when using these types of devices is that the typical concepts of compression ratio attack release and threshold do not apply The light intensity is determined by the highly non linear interactions of the input signal AGC circuit and ELP and thus exhibit a strong program dependence that is impossible to describe without the mind numbing mathematics of statistical mechanics The actual results however can be almost mystical even when you feed the same material a loop perhaps through the Leveler twice you ll often see a new response the second time through a loop complete with unique attack times release times and compression ratios Furthermore two different input signals with the same RMS levels may be leveled in a drastically different manner It is precisely this self adjusting behavior that makes optical compressors the tool of choice for smoothing out vocals bass guitar and full program mixes without destroying perceived dynamics 72 MIXER EFFECTS Enabling or disabling the Leveler The Leveler models the LA 2A so closely it al
65. e For more info see MOTU AVB Control Web App on page 17 The web app is a web application served by the hardware All you need to run it is a web browser running on a device that has a connection to your audio interface through Thunderbolt USB or the network port Web app in your browser Web app Figure 4 1 The web app is served from the hardware and accessed through any web browser on any device connected to the interface Web app control can be set up independently of audio connections The connections in this section especially the network scenarios can be set up independently of USB Thunderbolt or AVB networking connections you make for audio routing as shown in the setup diagrams earlier in this chapter In addition connections for web app control can be made over standard Ethernet and do not require AV B Ethernet connections Think of web app control as being separate from audio Doing so opens up a lot of possibilities for control of your MOTU interface independent of the connections you make for audio Mixing and matching web app control scenarios The web app connection scenarios shown in the following sections are not exclusive from one another You can set up as many web app connections as you wish and control your MOTU device from many web app hosts simultaneously Launching the web app Once you ve made any of the connections shown in the following sections launch the web app as explained in
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67. e multiple networked MOTU AVB devices If you aren t sure how many channels you ll need visit the Routing tab as explained below Making inputs and outputs available to your host software In the web app use the Routing tab page 20 to map inputs and outputs to computer channels as demonstrated in Figure 7 1 and Figure 7 2 0 1 2 3 4 5 6 7 8 9 21 22 23 24 25 26 27 28 29 30 31 32 33 34 From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu From Compu AVB Stream 1 Figure 7 1 An example of routing computer channels from host audio software to physical outputs on a 1248 The two headphone outs are mirroring the main outs channels 1 2 from the computer In this example 30 channels are being used for streaming from the host computer but more can be added for streaming to the AVB network or the on board 48 channel mixer in the 1248 62 WORKING WITH HOST AUDIO SOFTWARE Configuration presets The presets menu item 7 in the Devices tab on page 18 provides many useful presets for various host routing scenarios These presets are a convenient shortcut for the routing grid setups discussed in the next few sections Naming computer input and output channels Click on any computer
68. eled by channel number or left right stereo configuration if applicable The meters display from 42dBFS to OdBFS as shown by the labels to the left of the LCD display Figure 6 1 8M mic guitar input meters with V LimitTM compressor On the 8M interface all eight mic line instrument inputs are individually equipped with V Limit page 18 a hardware limiter that helps prevent digital clipping from overloaded input signals With the limiter turned off signals that hit OdBFS or above will clip a hard digital clip However with V Limit turned on signals can go as high as 9 dBFS with no distortion due to digital clipping If the signal goes above 9 dBFS it will clip even with V Limit engaged The small downward meter to the right of the channel s meter indicates how much V Limit is limiting the signal Lookahead page 18 enhances performance by anticipating peaks but adds compensated delay 16 samples to TM all inputs Also see Soft Clip on page 42 Figure 6 1 V Limit compressor on the 8M interface 57 PUSH BUTTON KNOBS On the 1248 and 8M the knobs Figure 6 2 are push button digital rotary encoders Push the knob for the function labeled in blue a amm gt Figure 6 2 Push the knob to activate the functions labeled in blue 16A BUTTONS Instead of knobs the 16A interface has equivalent buttons Use the up down arrow buttons to scroll through menus or settings
69. ency monitoring STAGE I O Use the Stage I O preset when you want to route audio inputs from musicians and instruments on stage to another location over Ethernet cabling This preset routes all inputs and outputs on the MOTU AVB interface to 8 channel AVB network streams in the routing grid which are then broadcast to any all other devices on the same AVB Ethernet network Single AVB Ethernet snake For example you could have a single Ethernet cable running from the unit on stage to a 2nd unit at the Front of House FOH mixer Audio inputs from usicians on stage Stage area di AVES li FOH mix position Laptop optional Figure 5 4 Use the Stage I O preset to connect audio inputs and outputs to other AVB devices on the rest of the network Stage I O to network As another example you could run an Ethernet cable from the stage unit to a MOTU AVB Switch with a host of other MOTU AVB interfaces and computers on a multi device network Audio inputs from usicians on stage Stage area m AVB SWITCH Switch A Figure 5 5 Use the Stage I O preset to connect audio inputs and outputs to other AVB devices on the rest of the network STUDIO INPUT EXPANDER Use the Studio Input Expander preset when you already have a main system set up but you want to add additional inputs This preset routes all physical inputs on the
70. ency Response Max Level In Trim Range Word Clock In Out Thru Specification Jack Type Termination Lock Range Input Output Jitter Power supply Configuration Power input Connector Type Power usage 1 4 Female TRS 100 ohm 123 dB 110 dB 0 0003 0 0 1 dB 20 Hz 20 kHz 20 dBu 16 dB in 1 dB steps Complies with EBU R68 SMPTE RP 155 1 4 Female TRS 10k ohm 117 dB 110 dB 0 000396 0 0 1 dB 20 Hz 20 kHz 24 dBu 22dB 2 dBu to 24 dBu in 1 dB steps Complies with AES 11 2009 Annex B 75 ohm in out 44 1 kHz 48 kHz 0 5 1 vppto3vp p with termination 5 0 vpp 2 5 v p p terminated complies with AES3 4 2009 Internal universal 100 V to 240 V 50 Hz or 60 Hz IEC 3 conductor receptacle 35 watts Balanced Tip hot Per leg A weighted 1 dBFS Unweighted 1 kHz Ref 1 kHz 4 dBu to 20 dBu Balanced Unbalanced Tip hot A weighted 1 dBFS Unweighted 1 kHz Ref 1 kHz Compatible with EBU R68 SMPTE RP 155 4 10 2vRMS IvRMS THRU is unterminated x1 x2 x4 AC coupled DC coupled 0 025UI For AC mains connection 89 APPENDIX B AUDIO SPECIFICATIONS APPENDIX B AUDIO SPECIFICATIONS APPENDIXC Mixer Schematics MONO INPUT CHANNEL POST FX PAN SOLO BUS MUTE FADER _ POST e SEND v SEND lw SEND e PAN 4 PAN L R L R MAIN GROUP MONO MIX REVERB AUX STEREO AUX 9
71. er latency The DSP mixer provides the same near zero latency throughput performance as a conventional digital mixer Effects processing doesn t impact your computer s CPU m DSP mixing and routing can be maintained independently of individual software applications or projects m DSP driven mixing can function without the computer allowing your MOTU AVB device to operate as a portable stand alone mixer with effects Effects are disabled when operating at 4x sample rates 176 4 or 192 kHz HIGH PASS FILTER Allinput channel strips provide a 12 dB per octave high pass filter High Pass filters are often used to remove unwanted mic rumble for example Figure 9 1 The High Pass Filter 69 All input channel strips provide a Gate module Figure 8 1 The Gate module The gate silences the signal when the input signal s level drops below the Threshold The rate at which the gate responds opens to let signal through is determined by the Attack parameter With a short Attack time the gate will open as soon as the signal crosses the Threshold with longer Attack times the gate will gradually open much like a fade in When the input level falls back below the Threshold the time it takes for the gate to close how quickly the signal is attenuated is determined by the Release parameter Short Release times will close the gate quickly abruptly attenuating your signal versus longer release times
72. er when Application is in Background MIDI Port Setup 7 Transport Input Latency 6 780 ms Time Display Output Latency 6 621 ms Video _ Video Player Audio Buffer Size eh VST Audio System 1248 VST System Link Advanced Options Set to Defaults CET Aucio Priority ESCHW isi preloac M Lower Latency Mi Multi Processing M Adjust for Record Latency esamos Record shit Ree Apply VA Figure 7 4 In Cubase or Nuendo choose Devices menu gt Device Setup Select your interface 1248 8M or 16 then click the Control Panel button to access the window above and the Buffer Size setting 66 WORKING WITH HOST AUDIO SOFTWARE Devices Auw al VO Axslut ES Revel Coro Audio M Enablod Qulpul Devise 1208 Input 1248 VO Buller Size 128 Resulting latency 7 51 ms Roundtrip 10 ms Output Hecording Delay 0 samples VI 24 Bil Recording W Sullwaw Monitoring A monitoring only focused Lack and lacks level for recordewabled Cla ul slips Processing Threads Auitamatirc Buffor Rango Modlum ReWire Beliaviur Off Maximum Scrub Spood Normal Suruli Response Figure 7 5 In Logic Pro go to the Audio Driver preferences to access the Buffer Size option shown above Lower latency versus higher CPU overhead Buffer size has a large impact on the following Monit
73. ers network port or a Thunderbolt to Ethernet adapter m Your home studio or office network with internet access m An AVB port on a MOTU AVB switch connected to your office network through the Ethernet port New Update Avallable 1 0 1 Mixing Configuration Aux Mixing Updating Firmware Updating with internet access You are now ready to update 1 Launch the MOTU AVB Control web app on your computer iPad or iPhone as usual 2 Goto the Device tab 3 Inthe New Update Available banner Figure D 1 click More Info 4 After reviewing the list of enhancements click OK to start the update 5 Waita few moments for the update to finish then click OK to return to the Device tab 6 IMPORTANT disconnect the Ethernet cable from your MOTU interface after you complete the update unless it is connected to a MOTU AVB switch or other AV B aware switch If so you can leave it connected Figure D 1 The firmware update banner appears automatically at the top of the Device tab when your web host has internet access and MOTU posts an update 95 96 Updating off line without internet access If your MOTU AVB interface and the computer it is connected to has no internet access you can download a firmware update file from another computer that does have internet and then use the file to update your MOTU interface as follows 1 Download the firmware file 2 Transfer the file to a computer wit
74. es 1 2 or Analog 1 2 How do I monitor live inputs Please refer to the documentation for the audio application that you are using If your application does not support input monitoring you will need to use the mixer in your MOTU interface Please see Monitoring through your MOTU interface on page 65 How do I control monitoring latency See Reducing monitoring latency on page 65 Troubleshooting The Routing tab page 20 doesn t display some of the inputs or outputs on my interface The Routing tab only displays input and output banks that are enabled in the Device tab page 18 so be sure any banks you wish to work with are enabled there However to conserve DSP resources and help consolidate screen space in the other tabs it is efficient practice to disable unused input or output banks ADAT banks for example when only working with analog banks or all output banks when only working with Phones I m getting a Could not enable this effect because DSP is overloaded error What should I do Disable other effects or reduce the number of mixer inputs to conserve DSP resources If there are audio input and output banks on your interface that you are not using such as the ADAT optical banks disable them in the Device tab page 18 I accidentally deleted my factory presets How do I restore them In the Device tab page 18 click the Restore Factory Presets button to restore all factory presets How do I fa
75. even switches Audio can be distributed from a centralized location to anywhere in the venue NETWORKING A QUICK GUIDE TO NETWORKING MOTU AVB networking has been designed to be powerful yet straightforward to set up and use Here are a few things that are useful to know Networking basics m Before proceeding below review the networking connection diagrams on pages 36 38 When making network connections use shielded CAT 5e or CAT 6 cables a higher grade cable m Network cable lengths can be long 100 meters with standard copper wire cables much longer with fiber optic network cables Working with AVB switches m Networks of three or more interfaces require an AV B compatible switch You can use any standard AV B switch on the market MOTU offers the port MOTU AVB Switch sold separately Anon AVB compatible switch will not work Connect AVB interfaces to any AVB Switch using their NETWORK ports On the MOTU AVB Switch connect MOTU interfaces to the five AVB NETWORK ports not the Ethernet port Connect the Ethernet port to a WiFi router your Local Area Network LAN or your computer for running web app only MOTU AVB interfaces or other AVB switches WiFi router Ethernet hub network or computer Sold separately m Expand the network by adding more switches Make a single connection from one switch to the other On MOTU AVB Switches use their AVB NETWORK ports NOT t
76. expansion MOTU AVB interface to AVB network streams You can connect to these expansion streams in AVB Stream Connections section of the Device tab of the main MOTU AVB interface PRESETS STUDIO OUTPUT EXPANDER Use the Studio Output Expander preset when you already have a main system set up but you want to add additional outputs This preset routes AVB network streams to all physical outputs on the expansion MOTU AVB interface You must choose which network streams are used in the AVB Stream Connections section of the Device tab of the expansion MOTU AVB interface OPTICAL CONVERTER Choose the Optical converter preset if you would like your MOTU AVB device to serve as a multi channel analog to digital converter connected to another device equipped with an ADAT optical port For example if you have a 1248 you could connect the 1248 optical output to the optical input on another non AVB MOTU audio interface such as an 828mk3 or 896mk3 The 1248 then serves as a multi channel expander that adds additional mic analog TRS and digital inputs to your setup The benefit of connecting the 1248 optically is that you can seamlessly integrate the 1248 inputs into the on board no latency monitor mixing in the other device such as the CueMix mixing environment in mk3 interfaces Audio inputs 1248 interface Optical cable Other optical device Figure 5 6 Use the Optical converter preset to connect additional audi
77. f host I O Over Thunderbolt each MOTU AVB interface support 256 simultaneous channels of audio I O 128 in 128 out to and from the entire network Support for multiple computer hosts All computers and all network devices run in sync with each other resolved to the network s master clock Gigabit Ethernet MOTU interfaces and the MOTU AVB Switch deliver 1 Gbit Ethernet performance which provides substantially higher bandwidth and lower latency than 10 100 Mbit Ethernet m Over 500 channels of network audio MOTU s AVB network can stream over 500 channels of audio throughout the network Each MOTU AVB device can broadcast sixteen 8 channel network streams and simultaneously listen to sixteen 8 channel network streams m Exceptionally low network latency Standard AVB network latency is 2 ms MOTU AVB network latency is an astonishing 0 6 ms even over seven hops switches and hundreds of meters of cable By comparison other commercially available proprietary audio network protocols have variable unpredictable network latency in the range of 2 5 ms m Star configuration MOTU AVB supports a star network configuration which is much more flexible than daisy chain scenarios which depends on all devices in the chain m Web interface MOTU AVB devices can be controlled from the MOTU AVB Control Web App which runs within any web browser on any networked laptop tablet or smart phone Althou
78. gh the web app shares the network with AVB AVB audio streams are never compromised because AVB streams over the network traffic m Bridging to standard Ethernet the MOTU AVB Switch provides an extra standard Ethernet port for bridging to your local Ethernet network Wi Fi etc for command and control internet access and other standard network traffic AII ports allow connection to standard non AVB network devices however the Ethernet port is suggested because it does not support AVB NETWORKING EXAMPLES Networking comes into play as soon as you hook up a second MOTU interface to your first one as explained in Setup for two interfaces on page 36 to add more I O to your studio Here are just a few examples of what is possible Personal studio expansion Let s say you have a 1248 mounted in a rack next to your computer You could add an 8M interface and position it across the room near your drum kit for placing up to 8 mics on the drums the mic cabling is kept near the drums and you have one simple clean network cable running back to your 76 NETWORKING computer system Despite the distance the two interfaces operate as a seamless system controlled from your computer or iPad Studio installation A studio installation of three to five interfaces can be handled with a single MOTU AVB Switch See Setup for three to five interfaces on page 37 Networking is ideal for studio installation because you can
79. grid tutorials For further information about using the routing grid including many useful tips and techniques visit www motu com techsupport technotes avbrouting CHOOSING THE MOTU AUDIO DRIVER Once you ve made the preparations described so far in this chapter youre ready to run your audio software and enable the MOTU audio driver Digital Performer and AudioDesk In MOTU Digital Performer or AudioDesk choose Configure Audio System Configure Hardware Driver from the Setup menu Choose 1248 or other MOTU interface model from the list of CoreAudio drivers Pro Tools Go to the Setup menu and choose Playback Engine Choose 1248 or other MOTU interface model from the Current Engine menu For information about the H W Buffer Size setting see Reducing monitoring latency on page 65 Pro Tools 9 or later is required Logic Pro Open the Preferences window click Audio tab gt Devices tab gt Core Audio tab Choose 1248 other MOTU interface model from the Output and Input device menus Garage Band In Garage Band go to the Audio MIDI preferences Garage Band drop down menu gt Preferences gt Audio MIDI and choose 1248 or other MOTU interface model from the Audio Output and Audio Input menus Cubase and Nuendo Open the Device Setup window Click the VST Audio System item in the Devices list and choose 1248 or other MOTU interface model from the VST Audio System menu Activate the inputs and
80. h a network cable connection to your MOTU interface 3 Launchthe MOTU AVB Control web app on the computer as usual 4 Goto the Device tab 5 Scroll down to the bottom and click Update from File 6 Locate the file on your hard drive and click OK to start the update 7 Waita few moments for the update to finish then click OK to return to the Device tab 8 IMPORTANT disconnect the Ethernet cable from your MOTU interface after you complete the update unless it s connected to a MOTU AVB switch or other AV B aware switch If so you can leave it connected System Information Viewing the latest firmware version information You can confirm the firmware version at the bottom of the Device tab Figure D 2 Why does the firmware update require a network cable Firmware updating was designed to use ethernet mostly for convenience If you have lots of networked devices you can upgrade them all from a distance even over Wi Fi without having to plug in directly and without having to download or run an updater application This approach was also taken for engineering reasons with reliability foremost in mind When installing an update the device reboots into a stripped down recovery partition to guarantee that the update process can always be completed even if the power goes out mid update Since updates can also affect the Thunderbolt or USB chips they cannot be used during the update Figure D 2 The currently ins
81. he Ethernet port You can daisy chain switches in serial fashion but don t create loops For example in the network below do not make any additional connections between any two switches D F C E G m AVB audio cant pass through more than seven switches However you can daisy chain more than seven switches and route audio freely among them You just won t be able to create point to point connects that span more than seven switches Working with computers on a network m Computers are not required for network operation as you can control the network from iPads tablets and smart phones To add computers to the network connect them to any interface using Thunderbolt If Thunderbolt is not available use USB but Thunderbolt is preferred because it provides much greater bandwidth to fully support the maximum possible number of audio channels to and from the computer 128 channels in and out simulta neously If your computer has multiple Thunderbolt ports you can connect the computer to multiple MOTU AVB interfaces for additional channel access to the network 128 channels in out for each interface 78 NETWORKING computer can connected to the network through its Ethernet port but only for the purposes of running the web app on the computer for command and control over the network You cannot stream audio through the computer s Ethernet port At this time MOTU is working closely with Apple on direct
82. he Threshold These types of issues can be addressed by adjusting the compressor s parameters or applying the Leveler instead Gain adjusts the overall output level of the compressor post processing The Level meter Figure 8 3 shows the level of the input signal entering the compressor It shows either the Peak envelope or the RMS level if enabled Gain reduction meter The Gain reduction meter Figure 8 3 displays the current amount of attenuation applied by the compressor before the makeup gain stage RMS mode By default the compressor operates in Peak mode which uses signal peaks to determine the input level In RMS mode the compressor measures the input signal s loudness using the root mean square computational method When RMS is disabled RMS mode will let brief peaks through because the detector sidechain is only looking at the average signal level By contrast peak mode will catch those brief peaks Peak mode is generally used for drums percussion and other source material with strong transients while RMS mode is mostly used for everything else The level meter shows either the peak level or the RMS level depending on the mode 71 MIXER EFFECTS LEVELER The Leveler Figure 8 4 provides an accurate model of the legendary Teletronix LA 2A optical compressor known for its unique and highly sought after Automatic Gain Control AGC characteristics Leveler Gain Reduction Figure 8
83. hub or home office network LAN You can run the web app on multiple computers simultaneously AA AAA EIIN A Network port Standard Ethernet hub or network LAN Ethernet cables Network port Figure 4 3 Web app control through a standard Ethernet hub or network LAN WiFi When using standard WiFi as shown you can control your MOTU interface from multiple WiFi devices simultaneously Laptop optional Tablet WiFi devices ex Airport Ethernet cable or any other WiFi router Network port Figure 4 4 Web app control through WiFi Ethernet network WiFi You can of course combine the setups shown in Figure 4 3 and Figure 4 4 with WiFi connected to the Ethernet hub or network MOTU Switch The MOTU AVB Switch provides five AVB Ethernet ports plus one standard Ethernet port Use the AVB ports for MOTU audio interfaces and use the Ethernet port for WiFi Ethernet etc MOTU AVB interfaces 0 Gb ETHERNET eco WiFi router or Ethernet hub network mo AVB NETWORK 10 10 Sold separately MOTU AVB SWITCH Figure 4 5 Using the Ethernet port on the MOTU AVB Switch HARDWARE INSTALLATION AUDIO CONNECTIONS Here are a few things to keep in mind as you are making audio connections to your MOTU interface Mic inputs with preamps Connect a microphone using a standard mic cable Do not connect a 4 dBu
84. iFi router pd cable pe Audio inputs from stage etc Figure 5 2 Using your MOTU AVB device as a stand alone mixer This example demonstrates how you can control the mixer from several Wi Fi devices INTERFACE MIXER Choose the Interface Mixer preset to use your MOTU AVB device as both an audio interface and mixer simultaneously Doing so routes all physical inputs and outputs to and from the computer connected through USB or Thunderbolt In addition all MOTU AVB device inputs are routed to the mixer which mixes them to the Main Mix bus The Monitor bus is set up as a solo bus In this scenario you would control the mixer from the MOTU AVB Control web app running on the computer You can also run the web app from wireless devices on the same WiFi network as the laptop Laptop Aux Aux Mix Mix 1 Mix 2 OO ro Audio inputs from stage studio etc USB Figure 5 3 Using your MOTU AVB device as an audio interface and mixer simultaneously 54 PRESETS LIVE RECORDING WITH MONITOR MIXING Choose the Live recording with monitor mixing preset when you are tracking in the studio The setup is pretty much the same as for the Interface mixer preset discussed in the previous section shown in Figure 5 3 on page 54 All physical inputs on the interface are routed to both the computer for recording and the Main Mix and Monitor busses in the mixer for near zero lat
85. ith up to 48 Use the Routing tab page 20 to route channels to the mixer inputs Channels can come from any source such as the physical inputs on the interface channels coming from the computer or channels coming from the AVB network 1 Shows and hides the Mixer Setup sidebar 3 which lets you show and hide channels channel strip settings effects and the Legend 6 2 The Mixing tab selects the mixer 3 Usethe Mixer Setup sidebar to show and hide elements in the mixer 4 Shows and hides all elements in the section with one click 5 Create save recall and manage mixer presets 6 This column is the Legend It provides labels and controls for channel strip sections The menu at the top lets you create name save and manage entire mixer presets 7 Mixer input channels 8 Thisinput channel has its Gate and Compressor enabled Disabled effects are grayed out 9 This is Group bus 1 2 You can send inputs to this group with their Group send fader 24 Groups are sent to the Main Mix with its Main send fader 24 or aux busses 19 10 Group buses the main mix bus and the reverb return bus are equipped with the Leveler a vintage compres sor modeled after the Teletronix LA 2A leveling amplifier The reverb channel strip provides controls for the reverb processor Use the reverb send on individual inputs or groups to route them to the reverb bus which can then be mixed TIT AA
86. ither 96 or 48 kHz the 1x equivalence is available as an option for word clock output when running at high sample rates from 88 2 to 192 kHz The word clock OUT port can alternately be used as a THRU port for word clock daisy chaining To configure use the LCD menu to navigate to Settings gt Word Clock Thru Mode Comprehensive metering The large backlit LCD displays all signal activity at a glance with detailed metering for all analog and digital I O You can access many hardware settings directly from the front panel Headphone outputs The 1248 front panel provides two independent headphone jacks with separate volume controls You can program the outputs to mirror another set of 1248 outputs or act as their own independent outputs The 8M also offers a single headphone output Precision Digital Trim On each interface all of the analog inputs are equipped with digitally controlled analog trims adjustable in 1 dB increments The input trims for mic inputs and guitar inputs can be adjusted from the knobs on the front panel You can save your trim configurations as a preset for instant recall Rack mount or desktop operation Each interface is housed in a sturdy metal alloy 19 inch rack mountable unit The rack mounting brackets can be removed using a 7 64 hex wrench for desktop operation AudioDesk AudioDesk is a full featured audio workstation software package included with the 1248 8M and 16A AudioDesk pr
87. ixer tab on page 21 Shows how much DSP power is being used by the mixer hardware To free up DSP bandwidth try reducing the number of mixer ins disabling channel effects reverb etc See DSP Usage on page 74 for more info 23 MAIN MIX AND MONITOR CHANNEL STRIPS o uM Monitor Main Mix a High Gain Ce Leveler Reduction m Makeup Gain Reduction None Phones Main Monitor Analog To access the Main Mix and Monitor channel strips go to the mixer tab page 21 and scroll the display to the right beyond the inputs and groups To show and hide sections of the channel strip such as EQ or the Leveler use the Controls section of the side bar item 3 in the mixer tab on page 21 1 default the Monitor bus serves as a solo bus However it can be set to mirror the main mix bus or any other aux bus group or the reverb bus in addition to monitoring solo Make this choice in the source menu 12 Use the Routing grid page 20 to specify the output for the Monitor bus 2 The Main Mix bus is the primary stereo mix 3 Provides hardware settings for any assigned outputs that have them For example if the Main Out bus is assigned to the Phones and Main Outs physical outputs on the inter face you ll see trim settings for both pairs Grayed out if there are no settings for output 4 Use this output assignment widget to choose the destination or multi
88. llation Hardware Installation Part 2 Using your MOTU interface 53 57 61 69 75 Presets The Front Panel LCD Working with Host Audio Software Mixer Effects Networking Part 3 Appendices 83 85 91 95 97 99 Troubleshooting Audio Specifications Mixer Schematics Updating Firmware OSC Support Index About Mark of the Unicorn License Agreement and Limited Warranty on Software TO PERSONS WHO PURCHASE OR USE THIS PRODUCT carefully read all the terms and conditions of the click wrap license agreement presented to you when you install the software Using the software or this documentation indicates your acceptance of the terms and conditions of that license agreement Mark of the Unicorn Inc owns both this program and its documentation Both the program and the documentation are protected under applicable copyright trademark and trade secret laws Your right to use the program and the documentation are limited to the terms and conditions described in the license agreement Reminder of the terms of your license This summary is not your license agreement just a reminder of its terms The actual license can be read and printed by running the installation program for the software That license agreement is a contract and clicking Accept binds you and MOTU to all its terms and conditions In the event anything contained in this summary is incomplete or in conflict with the
89. lug ins the easiest way to avoid monitoring latency is to disable your DAW s live monitoring feature and instead use the digital mixer in your MOTU interface to route the input directly to your outputs For details see Mixing tab on page 21 The mixer in your MOTU interface even provides zero latency effects processing EQ compression and reverb which can be applied to the signal Direct hardware playthrough Direct ASIO monitoring When managing your live monitor mix through your MOTU interface mixer remember to disable your DAW s live monitoring features so that you won t hear record enabled tracks in your DAW Also note that your MOTU AVB interface does not support Direct Hardware Playthrough in Digital Performer or the Direct ASIO Monitoring feature or similar offered and other DAWs which lets you control no latency hardware monitoring from within the host application Instead you can use the MOTU AVB Control web app mixer Mixing tab on page 21 to make these live monitoring connections manually If you dont require any effects processing on the input signal no reverb or compression for example all this takes 15 one click in the routing grid to route the input being recorded to the output you are using for monitoring If you are recording a mono input that youd like to monitor in stereo or if you need to apply effects to the monitored signal you can simply route the input to the mixer in your MOTU in
90. me to change it Delete the current name to restore the default name 2 Provides hardware settings for the input For example if the input is a mic input you ll see settings for preamp gain 48V phantom power and so on 3 Choose the source for the input channel You can also make this setting directly on the Routing grid page 20 4 Create name save and recall channel strip presets 5 Toggles the input between mono and a stereo pair 6 High Pass Filter with cutoff frequency 7 Each effect in the channel strip High Pass Filter Gate EQ etc has an on off button on the left and a preset menu on the right for managing presets that apply only to that processing module For example you can create your own EQ presets for the EQ modules 8 The Gate processor provides standard attack threshold and release controls 9 The Gate indicator turns red when the gate is engaged 10 The EQ section provides four bands of parametric EQ each with standard Gain Frequency and Bandwidth settings 11 The High and Low EQ bands provide a Shelf filter button for standard high and low shelf filtering 12 The Compressor provides standard controls for Threshold Ratio Attack Release and Gain Normally the compressor operates in Peak mode where signal peaks determine the 1 14 1 1 1 18 19 20 21 22 23 24 25 26 input level Engage the RMS but
91. must be registered separately You can do so online or by filling out and mailing the included software registration card found at the beginning of your AudioDesk manual Thank you for taking the time to register your new MOTU products 31 32 PACKING LIST AND SYSTEM REQUIREMENTS CHAPTER 3 OVERVIEW USB 2 0 class compliant operation 33 Software lt 33 Core Audio lt 34 MOTU AVB Discovery app 34 AudioDesk workstation software 34 USB 2 0 CLASS COMPLIANT OPERATION Your MOTU interface is a USB 2 0 audio class compliant device This means that you can connect it to your computer with a USB cable and use it without installing any software drivers The Web app discussed below is available through USB if drivers are installed no Ethernet required The computer recognizes it as a USB audio device and makes its inputs and outputs available to your host audio software Basic settings such as the hardware s sample rate are made in either your host software Mac or your system settings Windows Optionally you can use the network port on your MOTU audio interface to access the MOTU AVB Control web app which provides full access to all settings in the device including the extensive on board routing mixing and effects processing features Since the web app
92. n Hardware Mark of the Unicorn Inc and S amp S Research MOTU S amp S warrant this equipment against defects in materials and workmanship for a period of TWO 2 YEARS from the date of original retail purchase This warranty applies only to hardware products MOTU software is licensed and warranted pursuant to separate written statements If you discover a defect first write or call Mark of the Unicorn at 617 576 2760 to obtain a Return Merchandise Authorization Number No service will be performed on any product returned without prior authorization MOTU will at its option repair or replace the product at no charge to you provided you return it during the warranty period with transportation charges prepaid to Mark of the Unicorn Inc 1280 Massachusetts Avenue MA 02138 You must use the products original packing material for in shipment and insure the shipment for the value of the product Please include your name address telephone number a description of the problem and the original dated bill of sale with the returned unit and print the Return Merchandise Authorization Number on the outside of the box below the shipping address This warranty does not apply if the equipment has been damaged by accident abuse misuse or misapplication has been modified without the written permission of MOTU or if the product serial number has been removed or defaced ALL IMPLIED WARRANTIES INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY
93. nced features include real time effects processing recording and much more See the AudioDesk User Guide available on your computer hard drive as a PDF document ZEE E Internal Ciock we umm us m rnit 12131174 0 00 23 05 s o eG ele start 48131417 stop 46111000 vproject Demo Au Music by Chris Parks v 4 gt J 12000 CI JJ Demo AudioDesk Full ES u i Al 2 Br 5 a o A le UN H yo a e n e SES a ei ma M ___ BB Figure 3 1 AudioDesk 34 SOFTWARE INSTALLATION 4 OVERVIEW Rack installation and heat 35 Thunderbolt audio interface setup 35 USB audio interface setup 36 Setup for two interfaces 36 Setup for three to five interfaces 37 Setup for a multi switch network 38 Setup for multiple Thunderbolt and USB interfaces
94. ng gear during operation It is not recommended that you connect disconnect or power on off devices connected to your MOTU interface while recording or playing back audio Doing so may cause a brief glitch in the audio CUSTOMER SUPPORT We are happy to provide complimentary customer support to our registered users If you haven t already done so please take a moment to register online at MOTU com or fill out and mail the included registration card Doing so entitles you to technical support and notices about new products and software updates TECHNICAL SUPPORT If you are unable with your dealer s help to solve problems you encounter with your MOTU device you may contact our technical support department in one of the following ways Tech support hotline 617 576 3066 Monday through Friday 9 a m to 6 p m EST Online support www motu com support Please provide the following information to help us solve your problem as quickly as possible m The serial number of your device This is printed on a label placed on the bottom of the rack unit You must be able to supply this number to receive technical support m A brief explanation of the problem including the exact sequence of actions which cause it and the contents of any error messages which appear on the screen The pages in the manual that refer to the features or operation of your MOTU AVB Device or AudioDesk with which you are having trouble
95. nputs Reboot Device 4 2 out of 16 Input Stream 2 2 out of 16 Output Input Stream 1 AVB Stream Connections None None anks Computer Setup 32 out of 48 Factory Presets Restore Factory Presets System Information Scroll down to view these additional Device tab settings 19 In the Input Output Banks sections you can disable any banks that you are not using Doing so hides them from the routing matrix and mixer to simplify operation Doing so also helps conserve DSP resources 20 AVB is IEEE s Audio Video Bridging Ethernet standard for high bandwidth low latency audio streaming over Ethernet If your 1248 8M or 16A is connected to a 2nd MOTU AVB interface through its network port orto an AVB switch for access to an extended AVB network you can stream audio channels to other destinations on the network 2 22 streams are handled in banks of eight channels so if you enable 16 out of 16 streams that s 128 channels in out or both See chapter 9 Networking page 75 If you have AVB network input streams enabled connect them to the output streams of other devices on the network here In the Computer Setup section you can specify how many audio channels you would like to be able to stream to and from your computer up to 128 channels each way simul taneously For example the 1248 has a total of 32 physical inputs and 34 outputs so to be able
96. nsidered to be the disconnect device for the product and shall remain readily operable 14 Accessories Only use attachments accessories specified by the manufacturer 15 Placement Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the product When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 16 Surge protection Unplug the product during lightning storms or when unused for long periods of time 17 Servicing Refer all servicing to qualified service personnel Servicing is required when the product has been damaged in any way such as when a power supply cord or plug is damaged liquid has been spilled or objects have fallen into the product the product has been exposed to rain or moisture does not operate normally or has been dropped 18 Power Sources Refer to the manufacturers operating instructions for power requirements Be advised that different operating voltages may require the use of a different line cord and or attachment plug 19 Installation Do not install the product in an unventilated rack or directly above heat producing equipment such as power amplifiers Observe the maximum ambient operating temperature listed below 20 Power amplifiers Never attach audio power amplifier outputs directly to any of the units connectors 21 Replacement Parts When replacement parts are required be sure the service technician has used
97. o inputs and outputs to another optical device This example shows 1248 interface inputs being routed to the other optical device but you could also do the same thing for outputs even simulta neously 56 PRESETS CHAPTER 6 OVERVIEW The front panel LCD displays level meters for all inputs and outputs except the phones On the 1248 and 8M the LCD also provides horizontal long throw input metering when adjusting preamp gain On all models the LCD provides several navigable menus that provide status information and basic hardware settings Level meters 57 Push button 58 TOA DUNON CN 58 Automatic channel focus 58 nn 58 58 Menu 58 Device MENU ira 58 Network 59 Settings MENU ah 59 Presets MENU een 59 Version 59 0 T 59 ADAT 5 59 Stand alone 59 The Front Panel LCD LEVEL METERS In its default state when the unit is first powered on the LCD displays level meter activity for all physical audio inputs and outputs on the device Inputs and outputs are lab
98. ock sync settings and network audio routing from the MOTU AVB Control web app software running in your favorite browser on a laptop tablet or smart phone connected to your MOTU interface directly or through your local 28 ABOUT YOUR MOTU AVB AUDIO INTERFACE WiFi network Multiple devices can be used simul taneously to access any audio interface settings on the network Stand alone mixing with wireless control If you connect your MOTU interface to an Apple Airport or other WiFi router with a standard Ethernet cable you can control its powerful mixing and DSP effects from your smart phone or tablet without a computer great for live sound mixing from your iPad tablet or other wireless device digital I O The 1248 8M and 16A interfaces each provide two 8 channel banks of optical digital I O Connect outboard digital processors digital mixers or other gear 16 channels at 44 1 48 kHz or 8 channels at 88 2 96 kHz S PDIF digital UO with SRC The 1248 provides S PDIF digital input and output on standard RCA coax connectors The input is equipped with Sample Rate Conversion SRC allowing you to input a digital signal running at a different sample rate than the 1248 See S PDIF with sample rate conversion on page 43 Word clock Each MOTU interface supports standard word clock synchronization at any supported sample rate When the interface is operating at 96 kHz it can generate word clock output at e
99. operates with standard Ethernet networks for connecting traditional Ethernet devices like wireless routers switches or any other non AV B aware device Support for existing network infrastructure Replace your existing switches with standard AVB compatible switches and your CAT 5e or CAT 6 wired infrastructure now supports AVB Long cable runs a single AVB network connection can run up to 100 meters with a standard copper wire CAT 5e or CAT 6 cable Fiber optic cable runs can be much longer With multiple switches you can create a network that covers very large distances if necessary You can use up to seven hops switch to switch connections 75 m AVB is already shipping on current Macs Apple has already implemented initial support for AVB on all current shipping Macs MOTU is working closely with Apple to realize the full potential of AVB Ethernet class compliant connectivity and scalable networking for all current generation Macs MOTU S AVB IMPLEMENTATION MOTU engineering has faithfully implemented the IEEE 802 1 AVB standard for the MOTU AVB products This means that MOTU devices are fully interoperable with any 3rd party AV B compatible device In addition MOTU has fine tuned AVB operation among MOTU AVB devices for optimum performance within the AVB specifi cation Here is a brief summary of advantages you will enjoy when using MOTU AVB devices together in a network 256 channels o
100. oring latency m Theload on your computers CPU m Responsiveness of transport controls and effect knobs in AudioDesk Digital Performer or other audio software Real time VI latency The buffer setting presents you with a trade off between the processing power of your computer and the delay of live audio as it is being patched through your software If you reduce the size you reduce monitoring latency but significantly increase the overall processing load on your computer leaving less CPU bandwidth for things like real time effects processing On the other hand if you increase the buffer size you reduce the load on your computer freeing up bandwidth for effects mixing and other real time operations Audio Performance E Playback Figure 7 6 When adjusting the buffer size to reduce monitoring latency watch the processor meter in Digital Performer or AudioDesk s Performance Monitor If you hear distortion or if the Performance meter is peaking try raising the buffer size If you are at a point in your recording project where you are not currently working with live patched thru material e g you re not recording vocals or if you have a way of externally processing inputs choose a higher buffer size Depending on your computer s CPU speed you might find that settings in the middle work best 256 to 1024 Transport responsiveness Buffer size also impacts how quickly your audio software will respond when
101. outputs within Cubase or Nuendo as usual 64 WORKING WITH HOST AUDIO SOFTWARE Live Open the Preferences window and click the Audio tab Choose Core Audio from the Driver Type menu Choose 1248 or other MOTU interface model from the Input Audio Device and Output Audio Device menus To enable or disable input or output channels click the Input Config or Output Config buttons Reason and Record Open the Preferences window choose Audio preferences from the menu and choose 1248 or other MOTU interface model from the Audio Output menu Reaper Open the Preferences window and click Devices under the Audio preferences Choose 1248 or other MOTU interface model from the Audio Device menu Other audio software Consult your softwares manual for further information REDUCING MONITORING LATENCY Monitoring latency is a slight delay caused by running an input signal through your host audio software and back out For example you might hear it when you drive a live guitar input signal through an amp modeling plug in running in your audio sequencer This delay is caused by the amount of time it takes for audio to make the entire round trip through your computer from when it first enters an input on your MOTU interface passes through the interface hardware into the computer through your host audio software and then back out to an output Monitoring through your MOTU interface If you don t need to process a live input with p
102. ovides multi channel waveform editing automated virtual mixing graphic editing of ramp automation real time effects plug ins with crossfades support for many third party audio plug ins sample accurate editing and placement of audio and more 29 ABOUT YOUR MOTU AVB AUDIO INTERFACE 30 ABOUT YOUR MOTU AVB AUDIO INTERFACE CHAPTER 2 Packing List and System Requirements PACKING LIST Your MOTU interface ships with the items listed below If any of these items are not present in the box when you first open it please immediately contact your dealer or MOTU m One audio interface One USB cable One power cord One manual m Product registration card SYSTEM REQUIREMENTS m 1 GHz Intel based Mac Faster CPUs recommended for best performance m 2 GB RAM more recommended m MacOSX 10 8 or later Available Thunderbolt or high speed USB 2 0 port Alarge hard drive preferably at least 500 GB PLEASE REGISTER TODAY Please register your MOTU interface today There are two ways to register m Visit www motu com register OR m Fill out and mail the included product registration card As a registered user you will be eligible to receive technical support and announcements about product enhancements as soon as they become available Only registered users receive these special update notices so please register today Be sure to do the same for the included AudioDesk software which
103. ow these easy steps to get started quickly 1 Download and run the MOTU AVB Installer http www motu com avb 2 Optional For quick access to your MOTU interface from your iPad or iPhone download the MOTU AVB Discovery app from the Apple App Store Your iPhone and iPad must be on the same WiFi network as your computer 3 Connect the interface to your computer with a Thunderbolt cable sold separately or USB cable included 4 Switch on your MOTU interface 5 Open the MOTU AVB Control web app by doing one of the following m From your computer choose your MOTU interface from the MOTU AVB Discovery app menu as shown below MOTU AVB Discovery app menu E Thu 11 05 z OG Q MOTU AVB Devices m From your iPad or iPhone launch the MOTU AVB Discovery app and tap your interface You should now see the MOTU AVB Control web app in your browser as shown on page 18 If not visit Appendix A Troubleshooting page 83 m For advanced network options and device discovery from any modern browser see chapter 9 Networking page 75 6 Choosea preset from the Quick Setup Quick Setup How are you planning to use your 1248 dio Int For operation as standard audio interface Hardware inputs and outputs are accessible from your computer and the mixer and audio networking features are disabled Preset Audio interface Stand alone mixer Interface mixer Livereco
104. ple destinations for the bus You can also make this setting directly on the Routing grid page 20 5 Use the preset menus to create save recall and otherwise manage channel strip presets for the Monitor bus and Main Mix bus w Manage Presets Import 6 Indicates that the bus is stereo 7 Thefour band parametric EQ for the Main Mix bus operates the same as described for input channels items 10 and 11 on page 23 including High and Low Shelf filter options 8 The Leveler provides specialized gain reduction modeled after the legend ary Teletronix LA 2A Leveling Ampli fier For complete details see Leveler on page 72 9 Mutesforthe Main Mix bus and Monitor bus 1 gt Master faders for the Main Mix bus and Monitor bus Use the same techniques described for input channel faders items 16 17 and 18 on page 23 1 When Follow Solo is enabled the Monitor bus switches to the solo bus when any channel is soloed NOTE if an aux bus is soloed then the Monitor bus carries only the soloed aux bus any current channel solos are excluded 1 N Choose the source for the Monitor bus from this menu It can mirror the main mix any aux bus group the reverb bus orit can serve only asa Solo bus 13 The SC button clears all solos 14 This mid band EQ is currently disabled and therefore grayed out AUX BUS CHANNEL STRIPS Banchidth O Mid
105. ple rate 61 Specifications 85 SRC 43 Stage I O preset 7 55 Stand alone mixer preset 7 54 Stand alone operation 57 59 Studio Input Expander preset 7 55 Studio Output Expander preset 7 56 Studio setup example 44 45 46 Synchronization 47 Become Clock Master 49 host software 68 Synths connecting 44 45 46 System requirements minimum 31 recommended computer 31 T Technical support 84 Threshold Compressor 71 To Computer 20 TOSLink 10 12 14 29 Trim 42 Troubleshooting 83 TRS analog inputs outputs 43 TRS connectors 42 Type 1 II optical mode 59 Unbalanced analog 42 Update From File 19 USB class compliance 33 installing drivers 34 V View Personal Mix 22 V Limit 42 57 Lookahead 57 W Width reverb 74 WiFi setup 41 Word clock 10 12 48 INDEX
106. product and in the owner s manual should be adhered to 4 Follow all Instructions All operating and use instructions should be followed 5 Donotuse the product near water 6 Cleaning Unplug the product from the computer and clean only with a dry cloth Do not use liquid or aerosol cleaners 7 Ventilation Do not block any ventilation openings Install in accordance with the manufacturers instructions 8 Heat Do not install the product near any heat sources such as radiators heat registers stoves or another apparatus including an amplifier that produces heat 9 Overloading Do not overload wall outlets and extension cords as this can result in a risk of fire or electrical shock 10 Grounding Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult and electrician for replacement of the obsolete outlet 11 Power cord Protect the product power cord from being walked on or pinched by items placed upon or against them Pay particular attention to cords and plugs convenience receptacles and the point where they exit from the unit 12 Power switch Install the product so that the power switch can be accessed and operated at all times 13 Disconnect The main plug is co
107. r based production system or both You can even connect multiple computers each with full access to all devices on the network including the other computers With additional standard AVB switches from MOTU or other brands and standard Ethernet cabling you can build an extensive AVB audio network The entire network operates with near zero network latency even over very long cable runs AVB implementation allows you to stream hundreds of audio channels among devices and computers on the network with guaranteed Quality of Service QoS prioritizing audio streams over less important traffic Matrix routing and multing Each MOTU interface provides completely flexible matrix style audio routing and multing You can route any analog or digital input computer channel or network stream to any other output computer or network device You can also mult any single input to unlimited multiple output destinations 256 channels of network audio for your host computer The 1248 8M and 16A interfaces let you stream up to 128 audio channels in and out simultaneously through their Thunderbolt connection to a host computer Sources and destinations can include inputs and outputs on the device inputs and outputs on other interfaces on the network and even audio software apps running on other computers connected to other devices on the network Web app control You can control on board DSP mixing device settings cl
108. rding with monitor mixing Stage I O Studio Input Expander Studio Output Expander Optical Converter Application Operate as a standard audio interface Operate as a stand alone mixer where all inputs are mixed to the main outs and mon itor outs A combination of the above two presets Record a live concert or recording session with a full monitor mix Route audio inputs from one interface to another through Ethernet cabling Routes expansion unit s physical inputs to main system using AVB network streams Routes main systems s AVB network streams to physical outputs on expansion unit Multi channel analog to digital converter NIVW 9u uu Yo Woy Jauuey 31 0 sqouy ayi uoneuuojur x10 w au pue andino pue 091315 4313W 4104 5 8 ye 1snfpe sqouy jaued zuo4 ay suas MOUS osje ue 3 s ndino pue syndul je spouuey Jyb a 10 sbunes sKejdsip 10 51 anaj S e dsip 197 1ppeq esodind njnui 71 sino pue sino syndyno 24 siy 0 WIYL YSNd SL 541 341 104 SYILIW 114100 DOTWNY Z 23 pue asuodsai dwe mon UO pue yo Jejin6 zey sindui 1
109. rdware itself In this example each 1248 input bank is expanded to reveal individual input channels except for the 8 channel A and B banks which are currently collapsed The From Computer input bank lets you route audio channels from your host audio software to any output including AVB network streams or the mixer In this example the column is collapsed to save space Use the Device tab to choose how many computer channels are avail able AVB streams are 8 channel banks that let you route audio to or from other devices on the AVB network if any are connected to local hardware outputs Use the Device tab page 19 to configure how many AVB streams you wish to work with If you aren t working with network audio you can set the number of streams to zero 0 10 These input streams are busses that originate from the mixer which supply the main mix bus monitor mix bus seven stereo aux busses three stereo group busses a reverb return bus and postFX channel sends for sending processed inputs to the computer or elsewhere You can route these mixer busses to any outputs you wish 5 including physical outputs host software on your computer other devices on the AVB network or even back in to the mixer beware of feedback loops Use these triangles to expand or collapse groups ofinputs For example it might be convenient to collapse banks that you are not using at the moment 12 Click
110. roll through the equivalent menus and settings Push SELECT or SEL to enter the selected sub menu column of options to the right or to select the currently highlighted parameter Push BACK to go to the parent menu To exit the menu entirely push BACK repeatedly until the menu disappears from the display Device menu The Device menu provides information about the device such as its name and connection mode Thunderbolt USB or AVB 58 THE FRONT PANEL LCD Network menu The Network menu displays the following network related information Setting Explanation Serial UID Unique AVB network identifier that can be used for troubleshooting IP address The unique network address for the unit Type this address into your web browser to access the unit s settings in the MOTU AVB Control web app AVB Indicates whether AVB networking is cur rently enabled or disabled For example could be disabled because a non AVB switch is being used When AVB is dis abled audio streaming over the network is disabled Settings menu The Settings menu provides access to basic hardware settings such as Clock Mode Sample Rate and so on Setting What it does Clock Mode Sets the digital audio clock source for the device Sample Rate Sets the sample rate for the device Word Clock Thru Toggles the Word Clock Output between Mode OUT and THRU Optical Specifies the SMUX format when operat ing at 88 2 or 96 kHz See AD
111. ronization is critical in any audio system but itis especially important when you are transferring audio between digital audio devices Your success in using the digital I O features on your MOTU device depends almost entirely on proper synchro nization The following sections guide you through several recommended scenarios Be sure to choose a digital audio clock master When you transfer digital audio between two devices their audio clocks must be in phase with one another or phase locked Otherwise you ll hear clicks pops and distortion in the audio or perhaps no audio at all Not phase locked Phase locked Device Device Figure 4 9 When transferring audio two devices must have phase locked audio clocks to prevent clicks pops or other artifacts There are two ways to achieve phase lock slave one device to the other or slave both devices to a third master clock If you have three or more digital audio devices you need to slave them all to a single Master 0 Master Q Slave 0 a Slave Y Figure 4 10 To keep the your MOTU interface phased locked with other digital audio devices connected to it choose a clock master master audio clock Also remember that audio phase lock can be achieved independently of timecode location For example one device can be the timecode master while another is the audio clock master But only one device can be the audio clock master If you se
112. s Input 48V Pad Gain Condenser mic On Asneeded needed Dynamic mic Off Asneeded As needed Guitar n a n a As needed 10 dBV Line level via TRS n a n a As needed 10 dBV Line level via XLR Off 20 dB 12dB 4 dBu Line level XLR Off 20 dB Zero only V Limit Each 8M mic input is individually equipped with V Limit page 18 which help prevent digital clipping from overloaded input signals For details EN see 8M mic guitar input meters with V Limi compressor on page 57 Soft Clip Additional or alternative protection can be applied individually to 8M mic guitar inputs by enabling Soft Clip page 18 When enabled Soft Clip engages just before clipping occurs and helps further reduce perceptible distortion TRS quarter inch analog inputs and outputs Quarter inch analog inputs and outputs are balanced TRS connectors that can also accept an unbalanced plug W Quarter inch analog outputs are not cross coupled Therefore use a TRS plug with the ring disconnected Not floating the negative terminal will short it to the sleeve ground and cause distortion 42 HARDWARE INSTALLATION TRS quarter inch analog trims quarter inch analog inputs and outputs can be trimmed This allows them to support a variety of standards including EBU R68 SMPTE RP 155 4dBu 10dBV 2vRMS lvRMS Quarter inch analog inputs are equipped with high quality digitally controlled analog trim that provides 2288 range 2dBu
113. s served from the audio interface hardware itself therefore it is not an application on your computer s hard drive Instead access it by using the MOTU AVB Discovery Application or through your web browser by typing your MOTU devices IP Address into the address bar USE YOUR FAVORITE WEB BROWSER The MOTU AVB Control web app runs in any modern web browser on any device connected to your MOTU interface either directly or wirelessly through a WiFi network You can use any device you wish a desktop computer laptop iPad tablet iPhone or smart phone If it can run a web browser it can run the web app You can use any browser you prefer Chrome Firefox Safari IE 11 etc The latest versions are strongly recommended CONTROL FROM MULTIPLE DEVICES You can run the web app on multiple host devices simultaneously RUN THE INSTALLER GET THE APP Visit www motu com avb to get the latest MOTU AVB installer and run it your computer to install the MOTU AVB Discovery app and drivers Visit the Apple App Store to download the discovery app onto your iPad or iPhone MAKE HARDWARE AND NETWORK CONNECTIONS Connect your MOTU interface to your computer or laptop with a Thunderbolt or USB cable Make sure your iPad iPhone tablet or smartphone is connected to the same WiFi network as your computer or device You can use any network connection scenario explained in Setup for web app control on page 40 LAUNCHING THE WEB APP To launch
114. sion The 1248 provides S PDIF digital audio input and output Be sure to review the digital audio clocking issues as explained in Syncing S PDIF devices on page 48 The S PDIF input is also equipped with sample rate conversion which allows you to capture digital input without digital audio sync You can even record S PDIF input that is running ata completely different sample rate than the 1248 s current sample rate When the 1248 clock mode item 13 on page 18 is set to S PDIF the 1248 resolves to the incoming S PDIF signal and no sample rate conversion occurs In this scenario an exact bit for bit digital audio transfer is accomplished When the 1248 clock mode is set to any other source besides S PDIE then sample rate conversion is automatically enabled for the input which can record any S PDIF signal up to 96 kHz This is not an exact bit for bit digital transfer but sophisticated filtering is applied to ensure the highest possible audio quality The S PDIF output is not equipped with sample rate conversion so it always outputs at the 1248 s current operational sample rate item 13 on page 18 43 HARDWARE INSTALLATION A TYPICAL 1248 SETUP Here is a typical 1248 studio setup This rig can be operated without an external mixer All mixing and effects processing can be done in the 1248 itself on the computer with audio software or both During 1248 front panel Headphones Secondary Com monitors
115. so models the time it takes for an actual LA 2A to warm up after itis turned on Therefore when you enable the Leveler give it a moment to settle before you begin processing signals with it Gain Reduction Gain Reduction Figure 8 4 sets the strength of the signal sent to the AGC model Makeup Gain Makeup gain Figure 8 4 amplifies the output signal to make up for gain reduction Limit button The Limit button Figure 8 4 models the original LA 2A Limit Compress mode switch The effect is very subtle with the Limit option behaving only slightly more like a limiter than a compressor The switch increases the level of the input to the AGC model and runs the attenuator at a slightly lower level The Leveler then responds more strongly to transients but otherwise still behaves like a leveling amplifier REVERB Use the enable disable button Figure 8 5 to turn the reverb processor on or off Since reverb uses considerable DSP resources it is best to leave it off when you are not using it Figure 8 5 The Reverb processor Routing inputs and groups to the reverb processor The reverb processor is a single independent unit that provides stereo reverb You can route any input channel or Group bus to the Reverb processor with the Reverb send on its channel strip All incoming signals to the reverb processor are merged and processed together The resulting stereo output from the reverb can then be merged into the Main
116. source Just know that in this case audio cannot be streamed between MOTU AVB devices that don t share the same master clock Resolving the master clock device to an external clock source The MOTU device you ve specified as the AVB network clock master can itself be resolved to an external time base such as word clock or ADAT optical Just choose the desired clock source from its Clock Mode menu in the Device tab Doing so effectively resolves the entire network to the external clock source 49 HARDWARE INSTALLATION 50 HARDWARE INSTALLATION Part 2 Using your MOTU interface CHAPTERS Presets OVERVIEW Because of its advanced extensive feature set your MOTU AVB interface can be used for many different purposes This chapter discusses common use cases and their corresponding device presets to help you use the hardware for your needs Preset menu The preset menu item 7 on page 18 contains a number of presets specifically designed for common use cases By loading the corresponding preset your MOTU AVB interface routing tab and mixer will be reconfigured accordingly You can visit the Routing and mixing tabs to inspect settings and adjust them as needed Audio interface 53 Stand alone 54 Interface 54 Live recording with monitor mixing 55 Stage
117. t USB2 0 or 3 0 Sce 5 2 0 class compliant operation on Use this setup if you want to connect two MOTU page 53 interfaces to your computer m No driver installation is necessary unless you want to use the Web app The connection to the computer should be Thunderbolt if possible to support all the I O for the networked interfaces m Usea standard Thunderbolt cable Place it at the end of the Thunderbolt chain m Use any standard CAT 5e Ethernet network cable to connect the two interfaces together using their NETWORK ports m Asan alternative see Setup for multiple Thunderbolt and USB interfaces on page 39 About CAT 5e cables Use shielded CAT 5e or CAT 6 cables which are a higher grade version of a standard Ethernet patch cable They are available wherever network cables are sold 36 HARDWARE INSTALLATION SETUP FOR THREE TO FIVE INTERFACES Use this setup if you want to connect three to five MOTU interfaces to your computer using MOTU AV B Switch sold separately m The connection to the computer should be Thunderbolt to support a large number of audio streams to and from the networked interfaces A single Thunderbolt connection supports 128 channels in and out simultaneously If you need more channels and your computer has a second available Thunderbolt port you can make a second connection to another interface on the network with full access to the network from both ports 128 I O
118. t section is important to note that monitoring delay has no effect on the recording or playback of audio data from disk The actual recording and playback is extremely precise it is only the monitoring of your live input signal which may be delayed Adjusting your host software audio buffer Buffers are small bundles of audio data Your interface speaks to your computer in buffers rather than one sample at a time The size of these buffers determine how much delay you hear when monitoring live inputs through your audio software larger buffers produce more delay smaller buffers produce less Under Mac OS X audio I O buffer size is handled by the host audio application not by your MOTU interface s Core Audio driver Most audio software applications provide an adjustable audio buffer setting that lets you control the amount of delay youll hear when monitoring live inputs or processing them with software plug ins Here are a few examples ____ Configure Hardware Driver Built in Microphone Built in Input Built in Qutput Display Audio Figure 7 3 In Digital Performer and AudioDesk choose Setup menu Configure Audio System Configure Hardware Driver to open the dialog shown above and access the Buffer Size setting Refer to your Digital Performer or AudioDesk manual for information about the Host Buffer Multiplier setting Device Setup OK VST Audio System Devices 4 Release Driv
119. t the trim for any output or matrix where you can make direct 10 Click to rename the interface To output pair which supports it connections between inputs and restore the default name deletethe 14 Indicates that the current device 1 Phones Main and Monitor outputs outputs your computer the mixer current name is successfully resolved to its chosen provide full volume control Analog and network audio streams if Clock Mode source 13 If it cannot outputs provide calibration control networked interfaces are connected 11 Click this device ID button to identify lock for some reason this icon 24 to 0 dB the unit you are currently viewing flashes red Check your chosen clock 5 The Device tab has settings for the and controlling with the web app source cables etc 18 The 8M mic inputs have these hardware itself such as mic input phantom power and preamp gain 6 Expands and collapses the sidebar software The front panel LCD on the hardware itself will flash the name of the device and its name will also flash in the Device list 1 If you have multiple MOTU AVB interfaces one of them may serve as a master clock source for the additional input settings See 8M mic guitar input meters with V Limit M compressor on page 57 and Soft Clip on page 42 t DEVICE TAB CONTINUED AVB Stream Setup Number of input Streams Number of Output Streams Input Banks Mixer Setup Number o I
120. t things up with this rule in mind youll have trouble free audio transfers with your MOTU hardware HARDWARE INSTALLATION SYNCING S PDIF DEVICES The 1248 provides RCA coax S PDIF digital input and output Your 1248 and the other S PDIF device will sync to each other by way of the S PDIF connection itself One device is the master and the other device is the slave Syncing the 1248 to its S PDIF input When you transfer audio from the S PDIF device into the 1248 choose S PDIF as the clock source item 13 on page 18 to resolve the 1248 to its S PDIF input S PDIF input with sample rate conversion The 1248 S PDIF input provides sample rate conversion which allows you to record any S PDIF signal up to 96 kHz even when the 1248 is resolved to other clock sources besides S PDIF See S PDIF with sample rate conversion on page 43 for more information Syncing another S PDIF device to the 1248 When transferring audio from the 1248 to another S PDIF device set the 1248 s clock mode item 13 on page 18 to any source other than S PDIF Doing so makes the 1248 the clock master When the other device records or receives S PDIF audio from the 1248 it will simply synchronize to the clock provided by the 1248 S PDIF signal SYNCING WORD CLOCK DEVICES The word clock connectors on your MOTU device allow you to synchronize it with a wide variety of other word clock equipped devices For standard word clock sync you need
121. talled firmware version is displayed at the bottom of the Device tab APPENDIX D UPDATING FIRMWARE APPENDIX OSC Support Open Sound Control OSC is a protocol for communication among computers and other multimedia devices that is optimized for modern networking technology AVB audio interfaces support OSC which provides remote control of all device settings and mixer controls from any OSC enabled controller For further details about remote control through OSC along with complete documentation for the MOTU AVB OSC API visit http www motu com avb avb osc support 97 APPENDIX E OSC SUPPORT 4dB analog input 42 10dB analog input 42 1248 expansion 36 front panel 9 installing 35 rear panel 10 summary of features 27 16A expansion 36 front panel 13 installing 35 rear panel 14 summary of features 27 24 bit optical 10 12 14 8M expansion 36 front panel 11 installing 35 rear panel 12 Soft Clip 42 summary of features 27 V Limit 42 57 Ableton Live 61 ADAT optical 10 12 14 connecting 43 SMUX Type 59 Analog inputs outputs 10 12 14 43 making connections to 42 Apple GarageBand 64 ASIO monitoring 65 Attack Compressor 70 71 Audio interface preset 7 53 Audio specifications 85 AudioDesk 29 34 61 64 authenticating 83 Aux Mix Target 22 Aux Mixing tab 22 AVB Discovery app 7 34 Ethernet explained 75 Input Output Banks 19 networking 75 80 overview 75 Stre
122. terface This is done by opening the Mix In group in the Outputs column along the left side of the grid Figure 7 2 on page 63 and clicking the tile at the intersection of the input s column and the desired mixer input s row Once routed to the mixer use the input channel reverb bus and monitor bus in the mixer to apply effects as desired and perhaps include other channels to the mix and then assign the monitor bus output in the routing grid to the output you are using for monitoring 65 WORKING WITH HOST AUDIO SOFTWARE In either case routing directly in the grid or routing through the mixer be sure to maintain the inputs connection to the computer as well so the input signal can be recorded in your host software In other words you ll want to make sure there are two tiles enabled in the input s column in the grid one tile for the connection to the computer and another tile for your monitoring output or a mixer input if you are using the mixer to apply effects If you need to route the input signal to other destinations too you can certainly do so you can route the input to multiple destinations Monitoring through your host audio software If you do need to process a live input with host software plug ins or if you are playing virtual instruments live through your MOTU audio hardware you can significantly reduce latency by adjusting the audio buffer setting in your host audio software as explained in the nex
123. the low frequency reverb time DSP USAGE The DSP Usage meter item 226 on page 23 shows how much ofthe available DSP processing power is currently being used by the mixer for the mix and for effects processing If there aren t enough DSP resources for all effects to be enabled on a channel effects are disabled for that channel and all subsequent channels Unlike other effects HPF and EQ on a stereo channel requires approximately twice the DSP resources as on a mono channel 74 MIXER EFFECTS CHAPTER9 Networking OVERVIEW The Audio Video Bridging AVB network port on your MOTU interface opens up a world of possibilities for creating expanded customized audio network systems Eeer 75 AVB implementation 76 Networking examples 76 A quick guide to networking 78 Setting up a MOTU AVB interface for networking 79 Mapping audio to network streams 79 Mapping computer channels to network streams 79 Bridging to Ehermmet 80 The MOTU AVB 5 80 ABOUT AVB Audio Video Bridging AVB is an extension of the Ethernet standard developed by the IEEE 802 1 standards committee specifically to add high performance audio and video networking AVB brings together the worlds of networking technology and high end audio Here is a brief summary of some of the immediate benefits of AVB for you
124. tible with a camera connection kit and do not require driver installation for USB connection to a computer Industry standard audio drivers for both Thunderbolt and USB operation provide universal compatibility with any audio software On board DSP with mixing and effects Each interface is equipped with a powerful DSP engine that drives both an extensive routing matrix and a 48 input digital mixer with 12 stereo busses and effects The mixer offers familiar operation modeled after large format mixing consoles 32 bit floating point processing of the mixing and effects processing in the DSP engine is handled with 32 bit floating point calculations to maintain and deliver virtually unlimited headroom and the utmost in sound quality Modeled vintage effects processing Effects include classic reverb compression modeled after the legendary Teletronix LA 2A compressor and 4 band EQ modeled after British analog console EQs system expansion and audio networking AVB stands for the IEEE 802 1 Audio Video Bridging Ethernet standard for high bandwidth low latency audio streaming over Ethernet The AV B Ethernet network port on each MOTU interface lets you add a second AV B equipped MOTU interface using any standard CAT 5e Ethernet cable You can network up to five MOTU interfaces together using MOTU AVB Switch sold separately and then run them as a stand alone network or as an extended bank of I Os for your compute
125. to access them all individually with no From device to computer 23 0 out of 24 0 out of 24 shared channels you should configure these two settings for 32 and 34 respectively Map them as desired in the Routing tab page 20 You can specify a higher number of audio channels if you will be streaming additional channels to and from the AVB network or the mixer Use these buttons to manually check for and install updates for your MOTU AVB device For complete details see Appendix D Updating Firmware page 95 Updating from file can be done offline from your computer using an update you ve obtained through MOTU s web site or tech support department The Check For Updates button requires Update Device Check For Updates that the computer or device you are using to view your MOTU AVB interface is connected to the inter net through a local network or WiFi Updating from the internet is easy and convenient 24 Use these buttons to reboot restart the device or restore its factory presets 25 The digital mixer in your MOTU AVB interface supports up to 48 channels If you don t need that many inputs you can lower the number here to simplify mixer and routing operation and conserve DSP bandwidth for effects processing ROUTING TAB Output Source Phones 1 Phones 2 Phones 3 Phones 4 Main 1 Main 2 Monitor 1 Monitor 2 From Computer 1 From Computer 2 From Computer 1 From Computer
126. ton to uses RMS values a computational method for determining overall loudness to measure the input level Input level and gain reduction meters for the compressor Aux and reverb sends Solo Mute Mute affects all sends as well as the main channel Pre fader sends are not affected by Mute Move the fader to adjust level Double click to return to zero unity gain or oo Click the dB scale numbers to make the fader jump exactly to that level Click and drag horizontally to jump consecutive faders to the same level Click to type in an exact dB level Channel pan For mono inputs double click to center Main Mix Slider is used to feed signal to the Main Mix Slider is set to 0 dB by default so all channel strips pre routed to the Main Mix bus If a channel is being sent to a Group which will eventually be fed to the Main Mix drag the slider to so it is not sent to Main Mix directly Group sends S lets you solo the group PRE toggles the sends between pre and post fader routing i e before or after the channel fader Clears all solos S lets you solo the Aux bus PRE toggles the sends between pre and post fader routing i e before or after the channel fader The dots let you toggle the Aux bus between mono and stereo This side bar with the section labels in it can be shown or hidden using the Legend switch in the Controls section of the side bar item 3 in the m
127. us fader 8 Thisis the master fader for the current aux bus being viewed 4 9 Indicates if the input or group is stereo or mono Each channel s mono stereo status cannot be toggled unlike MIXING page 10 Solo and mute for the aux bus master fader When Prefader is enabled all send levels to the aux bus are indepen dent of the main fader for each channel In other words changing anindividual channel s main fader in the Mixing tab won t affect its send level to the aux bus 12 Click the View Personal Mix button to open a new web page that displays only that specific Aux Mix or Group 13 Show and hide mix groups and the reverb bus here 14 Usethe Groups button here to show or hide all groups with one click 15 Show and hide mixer inputs channel sends here 16 Show and hide all mixer inputs with one click here 2 MIXER INPUT CHANNEL STRIPS Gain Attack m W Release Level Gain Reduction Aux 1 2 Aux3 o Reverb ya Group 1 2 _ Group 3 4 2 Group 5 6 6 66 6 6 6 66 66 To access a mixer input channel strip go to the mixertab page 21 reveal the side bar item 3 on page 21 and then show the input channel you want in the Mixer Inputs section 29 To show and hide sections of the channel strip such as EQ or the compressor use the Controls section of the side bar item 3 in the mixer tab on page 21 1 Click the input channel na
128. uter channels for streaming audio to and from your host audio software You might want enough channels to cover the following m Physical inputs you want to record on your computer m The physical outputs you want to send audio playback to m Any audio streams going to and from the on board mixer in your MOTU device L 2 3 4 5 6 From Compu From Compu From Compu From Compu From Compu From Compu Output From Computer 1 Phones 1 Phones 2 Phones 3 Phones 4 Main 1 Main 2 Monitor 1 Monitor 2 Analog 1 From Computer 2 From Computer 1 From Computer 2 From Computer 1 From Computer 2 From Computer 3 From Computer 4 From Computer 5 Analog 2 Analog 3 Analog 4 Analog 5 Analog 6 Analog 7 Analog 8 1 SPDIF 2 ADAT A 1 ADAT A 2 ADAT A 3 ADATA 4 ADATA 5 ADATA 6 ADATA 7 ADATA 8 ADAT B 1 ADAT 2 ADAT B 3 ADAT B 4 ADAT B 5 ADAT B 6 ADAT B 7 ADATB 8 From Computer 6 From Computer 7 From Computer 8 From Computer 9 From Computer 10 From Computer 11 From Computer 12 From Computer 13 From Computer 14 From Computer 15 From Computer 16 From Computer 17 From Computer 18 From Computer 19 From Computer 20 From Computer 21 From Computer 22 From Computer 23 From Computer 24 From Computer 25 From Computer 26 From Computer 27 From Computer 28 From Computer 29 From Computer 30 7 8 From Compu From Compu m Any audio streams going to and from the AVB network if you hav
129. which will gradually attenuate your signal like a natural fade out FOUR BAND PARAMETRIC EQ mixer channel strips except for the Monitor bus provide modeled four band parametric EQ Vintage EQ Inspired by legendary British large console EQs the EQ section Figure 8 2 models the sound of the most sought after classic equalizers Four bands of center frequency parametric EC filtering are provided each with a bandwidth control The High and Low bands include a shelf filtering option With 32 bit floating point precision the vintage EQ has been carefully crafted and meticulously engineered to produce musical results in a wide variety of applications Enabling EQ Each band has an enable disable button Figure 8 2 allowing you to enable as few or as many bands as needed for the channel strip Enable disable Disabled band Figure 8 2 The Four band parametric EQ module EQ filter controls The EQ filters have three controls Control unit range Gain dB 20 00 to 20 00 Frequency Hertz 20 to 20 000 Bandwidth Octaves 0 01 to 3 00 Double click a knob to return to its default position EQ filter characteristics EQ 15 one of the most widely used processing tools and can be applied to many different situations from minor corrective tasks to creative tone sculpting The four band EQ has been designed to 70 MIXER EFFECTS be flexible enough to cover broad range of applications By adjusting Gain and Band
130. width together you can emulate the smooth and musical character of classic analog EQ circuits in which the Gain Bandwidth dependency was dictated by the actual circuit design and electrical components used Low and high shelf filters The Low and High bands offer a shelf option that is similar to those found in most conventional parametric EQs COMPRESSOR mixer input channel strips provide a compressor module Gain Reduction Figure 8 3 The Compressor module The Compressor Figure 8 3 lowers the level of the input when amplitude of the signal is above the Threshold The amount of attenuation is determined by the Ratio and the input level For example if the input is 6 dB above the Threshold and the Ratio is 3 1 the compressor will attenuate the signal to 2 dB above the Threshold When the input level goes above the threshold the attenuation is added gradually to reduce distortion The rate at which the attenuation is added is determined by the Attack parameter Likewise when the input level falls below the Threshold the attenuation is removed gradually The rate at which the attenuation is removed is determined by the Release parameter Long Release times may cause the audio to drop out briefly when a soft passage follows a loud passage Short Release times may cause the attenuation to pump a term used to describe the sound of the compressor when the average input level quickly fluctuates above and below t
131. with audio software or both During recording you can use the 8M s 8M front panel Primary studio monitors or Headphones PA Secondary studio monitors MOTU 8pre and or other optical devices 8 channel ADAT optical SM back Weg 2 00060 OO AA AE panel 0000 YU kHz ANALOG Ethernet cable to another MOTU AVB device MOTU AVB Switch or WiFi router etc LY Other outputs stage monitors surround monitors etc Guitar 1 7 69000000000 008 Thunderbolt or USB Dass Guitar 2 Figure 4 7 A typical 8M studio setup HARDWARE INSTALLATION A TYPICAL 16A SETUP Here is a typical 16A studio setup although the 16A is certainly flexible and supports many operational configurations not shown here This diagram is meant to give you just a few ideas of Secondary studio monitors MOTU 8pre and or other optical devices 8 channel ADAT optical Other 5 10r7 1surround outputs what is possible The 16A can be used as an audio interface mixer effects processor or even as a patch bay You can control all mixing effects processing and routing from your laptop tablet or smart phone monitoring synthesizer quarter inch analog outs psum qp eem WORD CLOCK 9 16 16A back IN IN OUT panel o 100 240 z 4 50 60 Hz max OUT THRU N ORK USB2 ETW or 15 13 11 9 IN our
132. working allows you to design systems that are scalable and easy to adapt to each venue You can easily bring devices on and offline rerouting audio stems as needed Because MOTU AVB networking employs a star configuration instead of daisy chaining you can set up backup computer playback systems on a shared network For example in a concert setting if one computer system goes down the backup system can be brought on line instantly through the same network infrastructure Traditionally live performance setups often have separate domains for front of house mixing monitor mixing computer backline and other systems With MOTU AVB networking these systems can be unified on the same network opening up many possibilities for shared resources and mixing routing responsibilities especially from multiple sources laptops iPads tablets etc MOTU AVB networking handles audio in convenient 8 channel stems making large scale network management more manageable MOTU AV B5 very low latency makes it particularly suitable for line arrays and sound reinforcement Large scale venues With long cable runs and industry standard networking infrastructure MOTU AVB systems are well suited for large scale commercial installations such as arenas stadiums theme parks clubs casinos houses of worship broadcast facilities schools universities and so on Audio streams can travel long distances with sub millisecond latency through as many as s
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134. you begin playback although not by amounts that are very noticeable Lowering the buffer size will make your software respond faster raising the buffer size will make it a little bit slower Effects processing and automated mixing Reducing latency with the buffer size setting has another benefit itlets you route live inputs through the real time effects processing and mix automation of your audio software WORKING WITH HOST AUDIO SOFTWARE WORKING WITH ON BOARD MIXING AND EFFECTS Your MOTU interface provides powerful mixing EQ compression and reverb which can operate hand in hand with your host s mixing environment For example your MOTU interface can serve as a monitor mixer routing channels to musicians or it can serve as an integrated extension of your host s mixing environment You can even save a particular mixing configuration as a preset for future recall For details see Mixing tab on page 21 SYNCHRONIZATION You may encounter situations in which you need to synchronize your audio software and your MOTU interface to other components of your system For details see Synchronization on page 47 68 WORKING WITH HOST AUDIO SOFTWARE CHAPTER 8 Mixer Effects OVERVIEW This chapter provides further information about the effects processors available in the DSP mixer in your MOTU AVB interface For basic mixer operation see NING AAA ee 21 Aux Mixing AS 22 Mixer input channel

828mk3 Hybrid User Guide Mac - B&H Photo Video Digital Cameras

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828mk3 Hybrid User Guide Mac - B&amp;H Photo Video Digital Cameras

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828mk3 Hybrid User Guide Mac - B&H Photo Video Digital Cameras