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nanoAVR HD and HDA User Manual

1. PARAMETRIC EQ Filter type BAND 1 LOW_SHELF Advanced Frequency 100 Gain 6 0 Q 09 BYPASS In the center of the window is a frequency response graph that illustrates the combined response of all enabled parametric filters on that channel The screenshot above shows a response curve created with a low shelf boost filter at 100 Hz a dip at 500 Hz and a high shelf cut filter at 5000 Hz There are ten filters per channel each of which is displayed by clicking on the buttons EQ1 EQ2 and so on Each filter can be set to one of four types PEAK Create a dip or a peak in the frequency response LOW_SHELF Reduce or increase part of the frequency spectrum below a given frequency HIGH_SHELF Reduce or increase part of the frequency spectrum above a given frequency SUB_EQ Create a dip or a peak in the frequency response at low frequencies 10 to 50 Hz This filter type is similar to PEAK but gives more accurate results for low frequencies Note that activating any SUB_EQ filter reduces the number of available filters on that channel from ten to nine Each filter has three parameters that control its location and shape These parameters can be entered directly as numerical values or by using the sliders Frequency For the PEAK and SUB_EQ filter types this is the center frequency of the peak or dip For the HIGH SHELF and LOW_ SHELF filter types this is the frequency at which the gain is half of the set value Gain For the PEAK and SUB
2. xml configuration Confirm the version of the file 6 3 MCU FIRMWARE UPGRADE miniDSP may periodically provide an update to the nanoAVR MCU firmware to enable new features The most recent MCU firmware is always included in the installation folder of the plug in download To update the MCU firmware first download the latest version of the plug in from the User Downloads section of miniDSP com and install it Read the instructions in the included file nanoAVR_firmware_update_procedure pdf to update the firmware At the point where the instructions ask that you open PIC32UBL exe this can be done from within the plugin by selecting Upgrade Firmware from the Restore menu DO NOT DISCONNECT THE USB CABLE OR POWER FROM THE nanoAVR WHILE FIRMWARE UPDATE IS IN PROGRESS DOING SO MAY BRICK YOUR nanoAVR Note that the firmware upgrade tool is as of publication of this User Manual available on Windows only 6 4 OBTAINING SUPPORT 1 Check the forums on miniDSP com to see if this issue has already been raised and a solution or solutions provided 2 Contact miniDSP via the support portal at minidsp desk com with a The specific product you are having an issue with in this case nanoAVR HD or nanoAVR HDA b Aclear explanation of the symptoms you are seeing c A description of the troubleshooting steps see Troubleshooting above you performed and the results obtained miniDSP Ltd Hong Kong www minidsp com Features and spe
3. 2 Ethernet Connect the nanoAVR to your local area network by plugging in the Ethernet cable The following dialog will appear DSP device detected IP address 192 168 1 7 Host name NANOAVR Connect Close Click on Connect to proceed 3 1 3 Options The first time you connect or if you have made any changes to any data in the user interface the following dialog box will appear It is recommended that the first time you connect use Restore Config to ensure a known Starting state Thereafter use Synchronize Config AnanoAVR kit with Serial 900999 was detected Please choose from one of the following options Synchronize Config Restore Config Help Cancel miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 18 NNN The options are Synchronize Config Download the currently selected configuration into the corresponding configuration preset of the nanoAVR After downloading the configuration data the user interface remains connected to the nanoAVR and any changes to processing parameters will be downloaded immediately in real time to the nanoAVR That is the nanoAVR is now live Synchronize and Upgrade This is similar to Synchronize Config but also upgrades the internal data of the nanoAVR This option may appear when connecting to the nanoAVR after an update to the plugin Restore Config Restore the data in the currently selected configuration to
4. And so on Stereo The nanoAVR always signals stereo output regardless of the number of input channels 4 0 The nanoAVR always signals four channel output regardless of the number of input channels 5 1 The nanoAVR always signals six channel output regardless of the number of input channels 7 1 The nanoAVR always signals eight channel output regardless of the number of input channels The setting of Channel Mode has no effect on the analog output channels nanoAVR HDA only 3 7 WORKING WITH CONFIGURATIONS The complete set of data that controls the audio processing of the nanoAVR is called a configuration The nanoAVR stores four configuration presets in its internal memory which can then be selected from the plugin user interface the front panel or via remote control The effect of changes made in the user interface fall into two categories The user interface is connected to the nanoAVR The user interface is live that is any changes made to the audio processing parameters in the user interface are downloaded immediately to the nanoAVR The effect of these changes will thus be audible as the changes are made The user interface is not connected to the nanoAVR Changes made to the audio processing parameters will be made locally in the user interface only The next time the user interface is connected to the nanoAVR the audio processing parameters will be downloaded to the nanoAVR as long as the Synchronize Config button i
5. DVD Player A V Receiver Ensure that your HDMI sources are set to produce linear PCM also referred to as PCM L PCM or LPCM on their HDMI outputs The nanoAVR does not decode compressed formats such as Dolby and DTS AN Some HDMI devices such as TVs only support basic HDMI Audio up to 48 kHz and will not respond to audio from the nanoAVR Use an A V receiver or preamp with 96 kHz support to decode HDMI audio t Apple Macs with a Thunderbolt port can be connected to the nanoAVR with the use of a Thunderbolt to HDMI adapter cable miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 11 ANNIN 2 1 2 Analog outputs nanoAVR HDA only The analog outputs of the nanoAVR HDA can be connected directly to power amplification and a powered subwoofer They can also be connected to any other equipment with multichannel analog inputs such as an A V receiver multichannel preamp or mixing desk To amplifiers subwoofer receiver multichannel preamp BB ET _ J C O u j EE OOO M OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 ETHERNET USB 2 0 DC SV HDMI IN 1 HDMI IN 2 HDMI OUT O 0 SSLEELEEES eegcossess coceecoees w OO Note that HDMI audio and the analog outputs are simultaneously active AN Always be sure to turn off all equipment before connecting or disconnecting audio signal cables miniDSP Ltd Hong Kong www minidsp
6. EESE 7 WRC La 21 0100 lt r ee ne nee een ee eA ee eee ee ences 7 ANote onthi Manual meee aeaneeiae SO nA NE NR nn EE Ee re Sn ee ne ee eee 7 de od 210 0 2156 OV NE eee ee ere eee ee ee rr 9 1 1 Typical usage nanoAVR HD teense techie os eis nsec cn nce icv ce dln be ond nie Se eset Gace 9 1 2 Typical usage NANOAVR HDA ccccsccseccseccnccecceccseccseceuececeseeeueeeccseeeuetseceseeeuceeeeeeeeuetseeeeeeeueeseeaaes 10 2 WSCA AION ANG SETUD ic cccsaccanasscsaccaancaaacanasanenaneascinncandeannsananensantunsed E n AEN EEEE ENE EEREN EREE 11 2 1 FOREN AVE COMMECEIV LY cnccececetccadecacecnte etaceaedortatacedacededadatadaaedadennsasunnotaaasennepnansnsanessenneenossaesenneonanereanees 11 2 1 1 HDMI input and OU NE ec ac eres eer emecentaceancaeuenetanmseenauctasanasnommnsseqaasennennannaaneesoannencseanens 11 2 1 2 Analog outputs NANOAVR HDA only cccceeccesccceecceeceencceceeuceenceeeeceeeceeuetenceeeseeetsueteneeegeeeeeees 12 2 1 3 DO PON seaasucced E E se ct steteuesesGcueaedet setae eenedueer EA 13 2 1 4 U Bee E E E seaee ewan searaverswarsenseesedeaucsswes weowurevavevweessieesieeser ieee 13 21 5 EME GS E E talon vesaseegseeocesseu ceeeeeecoveeeseeeseeuse sve aseeese ocessces eee 14 2 2 Software INSCAIIATION lt xiccrescicneserssernderesenescnverreinsaiaeesesanriadersieabi een danavecsunseunssensenssensseossnsevessucsvneswnenwoesetas 15 2 2 1 NO WU MCN OV Sacto reer c rere eect eer esr enw eres esses oats deans ate paw Aba
7. The miniDSP UMIK 1 measurement microphone or other measurement hardware can be connected to a USB input on the computer The Room EQ Wizard REW program can then be used to generate a test signal that plays through the system and each speaker in turn This program uses a swept sine wave technique which is a signal that starts at low frequencies and gets higher in frequency over the course of a few seconds After playing the signal and recording the resulting audio REW analyzes the captured signal and displays a frequency response plot as shown above It is also capable of many other types of analysis that you can use to optimize your audio or home theater system A V Receiver Computer with HDMI or Thunderbolt port HDMI input HDMI output miniDSP nanoAVR UMIK 1 USB microphone Speaker under test Figure 2 Typical nanoAVR connection for acoustic measurement It is also possible to perform acoustic measurements using a test disk and an SPL meter This method is slower and less precise but can be used if the computer based method is not feasible MORE INFORMATION To set up your computer to use Room EQ Wizard and a UMIK 1 use one of the following application notes e Using the UMIK 1 and REW with HDMI output Windows e Using the UMIK 1 and REW with HDMI output Mac To learn more about how to analyse and understand the results of your measurements see e Acoustic measurem
8. embedded keys Complete matrix mixer for routing of audio 8 channels in 8 channels out 10 band parametric equalizer per channel peak notch low amp high shelf Per channel time delay gain control and level monitoring All settings controllable in real time from software user interface Up to 4 presets stored in local flash memory Learning remote capabilities NEC Philips Sony Apple Controls master volume mute HDMI input selection preset selection 5 VDC single supply 600mA 2 1 mm center positive 31 x 161 x 110 mm nanoAVR HD 47 x 161 x 110 mm nanoAVR HDA miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 40 nnn 6 2 TROUBLESHOOTING The following table lists the most common causes of issues with the nanoAVR If following this table does not provide a solution see Obtaining Support below tem Symptoms Troubleshooting recommendation 1 Cannot install software a Confirm that you downloaded and installed the required frameworks first see Software Installation Software running in The Adobe Air environment may require a version update background but not Connect your PC to the Internet to automatically get an showing update or download manually from http get adobe com air Cannot connect to the Reset the board by power cycling the unit board by USB Make sure the unit is seen in the device manager as a HID device Cannot connect to
9. left of the Xover screen and click the Link checkbox FR Out Link Select Channel FR Out SUB Out CTR Out aL Out miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 25 Ni 3 4 5 Compressor The compressor reduces the gain of an output channel when the audio signal reaches a certain level as specified by the Threshold parameter The gain of the channel will be progressively reduced as the signal increases above the threshold according to the Ratio parameter This can be used to limit the power delivered to speakers and thus reduce the risk of damage from overdriving This screenshot shows an example Compressor setting Threshold dBFs 2 20 10 18 Ratio 2 4 Attack Time ms 42 40 ve Release Time ms 58 100 BA 74 pa 2 See Infinity 30 81 f2 3 54 45 3 27 18 0 Note that the compressor algorithm is bypassed by default so click on the Bypass button to see the curve as shown here In this example the threshold is set to 20 dB so the compressor will activate when the signal on that channel reaches 20 dB relative to full output The ratio is set to 2 so if the input signal level to the compressor then increases by 10 dB the output level will increase by only 5 dB If the input signal level to the compressor is at full scale 0 dB then the output level will be limited to 10 dB Two additional parameters control the act
10. loaded from files Each configuration is stored in a separate file It is strongly recommended that each configuration programmed into the nanoAVR be saved to a file to ensure that the configuration is not lost if the nanoAVR is inadvertently reset A configuration file stores all of the audio processing parameters except for the master volume setting and the HDMI input selection To save the currently selected configuration to a file drop down the File menu then select Save and then Save current configuration In the file box select a location and name of the file and save it F ile Restore Help IR Remote To load a configuration first select the configuration preset that you wish to load the parameters into Then drop down the File menu select Load and then Load configuration to current slot File Restore Help IR Remote Load configuration to current slot nanoAVvR If the user interface is live the loaded configuration data will be downloaded to the nanoAVR immediately and audio processing will recommence with the new configuration If it is not the configuration will be loaded into the user interface only and will be downloaded to the nanoAVR the next time it is synchronized Tip To copy a configuration from one preset to another simply save the configuration to a file then select a different preset and load the file miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without pri
11. ANANN DSP Home Theater Series NANOAVR HD NANOAVR HDA HIGH RESOLUTION HDMI AUDIO PROCESSOR User Manual FL Out FR Out CIR Out SUE Out SLO SR Out RL OR RR Out 20 t EQi EQ2 EQ3 EQ4 EQS EQ6 EQs EQ9 EQi0 FL Out FR Out SUB Out CTROu fm o OTs an a A o o oon 0 3 ao oo 2 CTR in gt A gt Ty LFE In ie gi Gdg off o sm 8 A CTR In of a Off TENE coin E 72 A E ry aea w we o oo eom BETE A T a E Preset Input Status www minidsp com 1 2 34 rD Ga xXD ee miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice Revision history Revision Description Date 26 Jan 2014 time delay links to app notes Troubleshooting 30 June 2014 1 4 Bass management information 28 Jul 2014 added support portal link added Update for Home Theater series 28 August 2014 1 6 Added nanoAVR HDA HDMI 17 March 2015 channel mode smartphone app miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice nin CONTENTS important informa ON isiin naaa ERER E ened sans ARRENAR EAA ERENER EE EET ELEN 5 System CHAIN CIS NS siisii ARRA Ra 5 NS Cla ra A A 6 VaN MCE aeaa AAAA OOA AOA AOE OEO AOA E E EE 6 TEREA e N E g eee enone E A E E E nn E E E E nen A E E S A AT E A 6 CE Mark Siemen SSS SEEE EEEE EEE ee oar ow ote eine Pa ee eee ere exe eee ERE
12. B S E OdB AB OdB Inset setting mix levels The input channels are low pass filtered in the LPF blocks and then summed into a combined low frequency signal The controls for each LPF block are similar to those seen in the Xover blocks in the output channels but only have a single low pass filter For details on the filter parameters see Crossover settings above 10 20 50 100 200 500 BE avance Settings for 7 full range channels Tiny satellite speakers 150 200 Hz Small center surround bookshelf speakers 100 120 Hz Mid size center surround bookshelf speakers 80 100 Hz Large center surround and bookshelf speakers 60 80 Hz Very large center surround bookshelf speakers 40 60 Hz Setting for 1 LFE channel 120Hz 1000 2000 5000 10000 20000 LOW PASS FILTER SETTINGS Cut off frequency Hz 80 Filter Type LR 48dB oct Bypass filter BYPASS The gain control blocks labelled with the attenuation such as 0 dB or 10 dB set the levels at which the low pass filtered signals from each channel are mixed together To set the gain right click on the box and use the slider or type directly into the entry box Then click Close To turn off low frequency mixing for a channel simply click on the gain control box to set it to Off miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 28 LIN DSP Note th
13. Ethernet router and wireless base station to be combined into a single unit In the setup illustrated the nanoAVR is connected via an Ethernet cable to the Ethernet router while the computer is connected to the LAN over Wi Fi The network must be capable of DHCP so that the nanoAVR will be given an IP network address ADSL Cable Modem Ethernet router wireless basestation isco CAT 5 CAT 6 network cable If a local area network is not available or the network does not support DHCP it is still possible to communicate with the nanoAVR over Ethernet by connecting the two devices directly with an Ethernet cable In this case auto IP link local addresses will be assigned For this to work correctly your PC must be set to allow automatic IP addresses that is it must not be set to a static IP address ETHERNET HDMI IN 1 HDMI IN 2 HDMI OUT eae g CAT 5 CAT 6 network cable miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 14 nnn 2 2 SOFTWARE INSTALLATION Subsequent to your purchase of the nanoAVR the software will be available from the User Downloads section of the miniDSP website This link is visible when you have logged into the site with the account you created when purchasing User Menu User Downloads User Profile gt Account Maintenance gt User Orders gt Navigate to the nanoAVR section of User Downloa
14. NON aaa AAA saaeeaceuescaccnscenecsaa annus atawatsaetenciusseuns asciurseersaseessisneatensnenteencansees 40 6 2 OCH SOC UNS ce cesersschocssssemascomsuestmensnoains N E EEE EEEE EE E EEE 41 6 3 AGO Sigg ccle a 0 0124 I a EE AE E E ee EEEE 42 6 4 ODMINE SUD DPOF T arassa Saa SASN ASEEN EREE E EEEE EREE EEEE EEEE TRE ERRETES 42 miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 4 nnn IMPORTANT INFORMATION Please read the following information before use In case of any questions please contact miniDSP via the support portal at minidsp desk com SYSTEM REQUIREMENTS To configure the nanoAVR you will require a Windows PC or Apple Mac OS X computer with the following minimum specification Windows e PC with 1GHz or higher processor clock speed Intel Pentium Celeron family or AMD K6 AMD Athlon AMD Duron family or compatible processor recommended 512 megabytes MB of RAM or higher Keyboard and mouse or compatible pointing device Microsofts Windows Vista SP1 XP pro SP2 Win7 Win8 1 Microsofte NET framework v3 5 or later Adobe AIR environment latest version e Adobe Flash player latest version Mac OS X Intel based Mac with 1 GHz or higher processor clock speed 512 megabytes MB of RAM or higher Keyboard and mouse or compatible pointing device Mac OS X 10 4 or higher Adobe AIR environment latest version e Adobe Flash player latest ver
15. _EQ filter types this is the gain in dB at the center frequency For the HIGH SHELF and LOW_ SHELF filter types this is the gain in dB reached at high or low frequencies respectively miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 22 Q Q controls the sharpness of the filter For the PEAK and SUB_EQ filter types lower Q gives a shallower peak or dip while higher Q gives a narrower peak or dip For the HIGH_ SHELF and LOW_ SHELF filter types Q controls how quickly the filter transitions from no gain to maximum gain To disable or enable a filter click on the Bypass button A filter will also have no effect if its gain is set to 0 0 Other filter types can be created by switching to Advanced mode In this mode the coefficients of each filter biquad are entered individually The coefficients will need to be calculated by a filter design program A useful spreadsheet for a number of filter types is available on the miniDSP com website see the application note Advanced Biquad Programming FQ1 EQ FQ6 FQ EQS EQ3 EQ10 PARAMETRIC EQ biquad1 seers BAND 1 b0 0 9847963925996347 A IMPORT 4 0AE Al 290 PROCESS Basic PPP 1 1 9453066949643298 advanced mae Each channel can be linked to one other channel When a channel is linked to another the PEQ settings of that channel are mirrored to the other Typically the corre
16. at the mix levels for the speaker channels are normally set 10 dB lower than the LFE channel see the application note Bass Management with the nanoAVr for full details The Routing screen provides the output from the LFE Mgt tab as the bottom row By default the summed filtered bass signal will be sent to the subwoofer channel as shown below The direct LFE input signal is not sent to the subwoofer on this screen as it has already been mixed into the LFE Mgt signal FL Out FR Out SUB Out CTR Out SL Out SR Out RL Out RR Out in M crn od8 0dB OdB The Xover blocks on the Output screen must also be used to create matching high pass filters for each speaker channel For a full set of instructions on how to use bass management see the application note Bass Management with the nanoAVR 3 6 CHANNEL MODE The number of audio channels that the nanoAVR signals on its HDMI output to the downstream HDMI device is selected by the Channel Mode dropdown selector Source HDMi 1 Master Volume Channel Mode miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 29 Auto The number of output channels signaled is the same as receives on the selected For example if the selected source signals that HDMI audio is carrying a stereo signal the nanoAVR passes this to its output If the source signals that HDMI audio is carrying six channels 5 1 the nanoAVR passes this to its output
17. atically start miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 16 ANNANN DSP 3 CONFIGURING THE NANOAVR The nanoAVR is configured with the nanoAVR_BM plugin user interface program Once the nanoAVrR is fully configured the user interface is no longer required as source and preset selection can be done with the front panel or a remote control see Using the nanoAVR below If desired however the user interface can remain connected during use for real time live control of all settings in the nanoAVR This screenshot shows the nanoAVR_BM plugin with the key areas highlighted Main menu File Restore Help IR Remote Co Connect Mute Global settings Selection tab Main FR Out SUB Out CTR Out SL Out configuration 12 window om i 12 a Master Help control Invert Invert Invert Invert Invert Mute Mute Mute Mute Mute Note during initial configuration of the nanoAVR it is recommended that the connected HDMI output device be muted miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 17 ANNIN 3 1 CONNECTING TO THE NANOAVR Communication with the nanoAVR can take place either over USB or Ethernet 3 1 1 USB Ensure that the computer is connected to the nanoAVR by a USB 2 0 port see Hardware connectivity above Then click on the Connect button Connect Connected 3 1
18. ble of contents is embedded in the PDF file which will make navigation much easier e In Adobe Reader on Windows click on the bookmarks icon at the left The table of contents will appear on the left and can be unfolded at each level by clicking on the icons e In Preview on the Mac click on the View menu and select Table of Contents The table of contents will appear on the left and can be unfolded at each level by clicking on the triangle icons miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice ANNANN DSP miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice SN 1 PRODUCT OVERVIEW The nanoAVR HD and nanoAVR HDA HDMI audio processors provide a comprehensive and sophisticated set of digital audio processing functions for eight channels of high resolution 24 bit 96 kHz HDMI audio The functions include bass management parametric equalization level adjustment mixing and routing and time delay All internal processing takes place at 96 kHz with sample rates up to 192 kHz accepted over HDMI Two HDMI inputs are provided and can be switched from the front panel or by an infrared remote not included The accepted audio format is multichannel linear PCM LPCM Video from the selected HDMI input is switched directly to the output with no video processing applied to the signal A user friendly computer base
19. button and the LED will now remain steady To change the selected input Press and hold the control button The LED indicating the selected HDMI input will switch to the other input Release the button miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 33 nin 4 3 INFRARED REMOTE CONTROL Many standard and programmable remote control units can be used with the nanoAVR Instead of adding another remote to your collection the nanoAVR can learn the control codes of your current remote if it supports one of the following remote control codes e NEC e Sony e Philips RC6 e Apple Remote To initiate the learning process drop down the IR Remote menu and select IR learning Click on the Learn button for an operation and then press the desired button on the remote control If the code is accepted the status will change to show a tick This screenshot shows the IR learning screen Master Mute Volume Up Volume Down HDMI Source Config Inc Config Dec Config 1 Config 2 Config 3 Config 4 ee i S Learn Learn Learn Learn Learn Learn Learn Learn Learn Learn The commands Config Inc and Config Dec can be used to change the selected configuration preset up or down This can be used instead of Config 1 Config 2 and so on Once programmed check that the programmed buttons perform the expected function Note changing the selected co
20. ch cross point represents a switch that can either be turned off or turned on with a gain setting By default each input channel is switched to the corresponding output channel with O dB gain i e no change in level as shown in the above screenshot Any number of input channels can be mixed to each output channel At each cross point the gain of the signal being mixed can be adjusted to a value between 72 and 12 dB To adjust the gain right click on the cross point and a gain control will appear Adjust the gain with the slider or by typing in the value directly This screenshot shows the gain control with two input channels mixed to one output channel each at 6 dB 6dB 12 on 6dB 12 a Off Off Off Note To rename an input channel click on its label and type in a new name maximum of eight characters miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 20 3 4 OUTPUT CHANNEL SETUP Click on Outputs in the Selection tabs The output control screen will appear with each channel showing a strip of controls Channel label FL Out 12 noa Gain adjustment Level meter EN og 12 E Current RMS level Wa Current gain Fea Edit EQ crossover and compressor settings Time delay in ms a y Invert Enable invert and mute Mute 3 4 1 Channel label The name of each output channel is shown at the top of the channel strip T
21. chnical support Thanks for your understanding WARRANTY TERMS miniDSP Ltd warrants this product to be free from defects in materials and workmanship for a period of one year from the invoice date Our warranty does not cover failure of the product due to incorrect connection or installation improper or undocumented use unauthorized servicing modification or alteration of the unit in any way or any usage outside of that recommended in this manual If in doubt contact miniDSP prior to use FCC CLASS B STATEMENT This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions e This device may not cause harmful interference e This device must accept any interference received including interference that may cause undesired operation Warning This equipment has been 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 This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interfe
22. cifications subject to change without prior notice 42
23. com Features and specifications subject to change without prior notice 12 INN DSP 2 1 3 DC Power The supplied 5 VDC power supply includes a set of interchangeable power pins Fit the correct pins for your country Connect the DC plug to the 5 VDC power socket ETHERNET USB 2 0 DC 5V HDMI IN 1 HDMI IN 2 HDMI OUT 5 ofa O wee HDMI units communicate with a set of hand shaking signals in order to establish the capabilities of each device It is recommended that for at least the first time the system is powered up with the nanoAVR connected equipment is powered on in this order TV AVR nanoAVR source player 2 1 4 USB To configure the nanoAVR via USB connect the USB port of the nanoAVR to a USB 2 0 port on your computer using the supplied cable ETHERNET USB 2 0 c 5V HDMI IN 1 HDMI IN 2 HDMI OUT USB Type B connector ace USB Type A connector miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 13 p D p D y Te a U oa Set ea U 2 1 5 Ethernet To configure and control the nanoAVR over Ethernet connect an Ethernet cable from the nanoAVR s Ethernet port to a free port on your Ethernet router or switch The diagram below illustrates a typical case where the Ethernet router also acts as a wireless base station and is in turn connected to an ADSL cable modem It is also common for the ADSL cable modem
24. d interface is used to configure the audio processing parameters of the nanoAVR in real time Up to four complete configuration presets can be stored Once configuration is complete the computer is no longer needed and the presets can be recalled from the front panel by an infrared remote or with a smartphone app 1 1 TYPICAL USAGE NANOAVR HD In its most typical application the nanoAVR HD connects between an HDMI source such as a Blu ray player and an A V receiver providing an unmatched level of audio tuning flexibility for home theater applications The second HDMI input allows connection of a second device such as a media streamer or computer HTPC The HDMI output is connected to an A V receiver which in turn drives the display TV monitor or projector powers a suite of loudspeakers and provides output to a subwoofer nanoAVR HD foe e amme ce i WI SSP HDMI inputs HDMI output AMV Receiver Blu ray DVD Player l TV Monitor Projector Streaming media player Powered Loudspeakers subwoofer PI miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 9 nin 1 2 TYPICAL USAGE NANOAVR HDA The nanoAVR HDA negates the need for an A V receiver to decode the audio component of the HDMI stream For example the analog outputs of the nanoAVR HDA can be connected directly to a multichannel power amplifier and a powered subwoofer as illustrated in the diag
25. ding CONFIGULATIONS ccccseccsecceecescceceeccseccseeeucteeceseeeucteeeseeeuctseeeseeeeceeeeeeeeeeees 31 miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 3 nin 3 7 3 Restoring to defui Seeria EN 32 3 8 Keyboard Shortcuts seessessusessesseeresresrrrerresrrserrerresrrsrrserreserresrrsersterersestesterevrrstrstererreserserseereseeseesee 32 WSIS TE aOR VR aera AAAA 33 4 1 Status TCR UU TS irr riire re e rN EA N AEE E EEEE EEEE EEEE EEEE EEEE AEEA 33 4 2 Front panel CO NOUS oerinoar AEE EEES EEES 33 4 3 PE eE E S AEAEE AEAEE E E E 34 4 4 Sia CMON Control ADD eesis SEEEN EEEE EEOSE EEEE EEEE EE ETOUR ET 35 3 PCOUSTIC MC ASU CLG ON enone E aoe eaaisera ban eebacb ub eae een TeeE eae eenaRs 36 5 1 MATA is acoustic measurement atc ecw et st scm cco ite icc sent ote ee Eat 36 5 2 Performing acoustic measurements sscssssucssxsesrsneessrdeiabsioerdeandyandenedunedanseneebubedebeieeaiuasbesrdeardeaedeaeeaney lt d 37 5 3 Adjusting equalizer settings cccceccescceecceeceecceecceecenceeeceseceeeeeeceeceeceeeeneeeeeeeeeeueteeeeeeeeneeeeseeeaeeeeeeees 38 5 3 1 Manual method ssssesssessesrnseesesresrrsrrsrsresrrsrrserrerrrsersersrsrerevrrsersterevrrserseererrseestererresreseererresreseere 38 5 3 2 Automated method cccceeccseccsecsecceecenceeuccseccscceuceseceeeeeueeeeeeceeeeeseeeeceeeeueeeucteeeaeeeeeeteeeeeeteeeees 39 C ACI ETO Pie IO MUO AAAA 40 6 1 SS CIC AR
26. ds and download the nanoAVR HD plugin Double click on it to unzip it Then follow the installation procedure below according to your computer type 2 2 1 Windows Prior to installing the miniDSP software download and install the following programs You will need to accept the license agreements in order to successfully complete the installation e Microsoft NET framework version 3 5 or later e Latest version of Adobe Flash e Latest version of Adobe Air If you haven t updated these recently you should download and install the latest versions prior to running the miniDSP install program To install the miniDSP software open the Windows folder of the download and double click on the nanoAVR_BM exe program We recommend accepting the default installation settings Once installation is complete the nanoAVR user interface will automatically start Since the nanoAVR checks for a network connection when starting up a warning such as the following may appear In this case click on Allow access miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 15 ANANN DSP e Windows Firewall has blocked some features of this Windows Firewall has blocked some features of nanoAVR on all public and private networks Name BINNA Publisher Unknown Path C program files x86 minidsp nanoavr nanoavr exe Allow nanoAVR to communicate on these networks W Private networks such as my home
27. ent with the UMIK 1 and REW miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 37 ANNIN 5 3 ADJUSTING EQUALIZER SETTINGS Once a frequency response plot of a channel has been obtained the parametric equalizers PEQ on that channel can be used to adjust or correct the frequency response In addition the PEQ can be used to tailor the sound to preference For example many listeners prefer an elevated bass to a flat response 5 3 1 Manual method In the manual method we use the PEQ user interface directly to create filters that alter the frequency response For example in the response curve shown above there is a significant peak at 59 Hz We can largely remove this peak by applying a corresponding dip in the frequency response with these filter settings 10 20 50 100 200 500 1000 2000 5000 10000 20000 PARAMETRIC EQ Filter type O OQ Q BAND 1 PEAK Basi Ad d Fr 59 Gain 12 0 3 5 vance requency ain Q RAGE Figure 3 Single PEQ band to correct response peak Other peaks can be treated in the same manner with additional PEQ bands Dips in the frequency response can be treated with a corresponding peak filter but care should be taken when boosting the response not to use too much boost or to use high Q filters Too much boost can cause signal clipping and narrow dips are typically caused by acoustic cancellations in the room and cannot be removed wi
28. frequency and filter type e PEQ filter frequency gain and Q Space The Space bar toggles buttons that have two states such as Bypass Invert and Mute miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 32 nin 4 USING THE NANOAVR Once configured the computer is not required to operate the nanoAVR The front panel an infrared remote or the miniDSP smartphone app can be used to control e Preset selection HDMI input selection Master volume remote control and smartphone app only Master mute remote control and smartphone app only Note changing the selected configuration preset from the front panel or remote control while the user interface is connected will disconnect the user interface 4 1 STATUS INDICATORS The current status of the nanoAVR is indicated by a set of LEDs Preset Indicates the currently selected configuration preset 1 through 4 Input Indicates the currently selected HDMI input 1 or 2 M Master mute is enabled D Data communication between the user interface and the nanoAVR is active 4 2 FRONT PANEL CONTROLS The nanoAVR uses a minimalist physical control design with a single control button To change the selected configuration preset Briefly press the control button The selection LED blinks quickly Briefly press the button to move to the next preset and repeat until the desired preset LED is lit Press and hold the control
29. io or home theater system has a frequency response on each channel which includes the response of the electronics the loudspeaker and the listening room In order to understand how these all combine to affect the sound heard by listeners an acoustic measurement using a suitable microphone and computer software is required The figure below shows a typical frequency response measurement for the bass region using the freeware program Room EQ Wizard In this example we are equalizing the subwoofer channel so the frequency scale from left to right progresses from 10 Hz to 300 Hz The height of the solid red line indicates the measured SPL sound pressure level at each frequency Where there are anomalies such as peaks in the response these can be corrected electronically in the nanoAVR In the graph the blue line shows the measured frequency response after correction with the parametric equalizer PEQ on the subwoofer channel dE 1D 0 BO Fai AA a 7 ro a IIE v f_ NF a BC AN f Faa l Tl Fawr 40 10 20 qo 40 50 60 70 688 OO 100 200 300 Hz Figure 1 Sample bass frequency response measurement before and after applying PEQ miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 36 SN 5 2 PERFORMING ACOUSTIC MEASUREMENTS To perform an acoustic measurement connect a computer with HDMI or Thunderbolt output to one of the inputs of the nanoAVR and select that input
30. ion of the compressor the attack time and the release time These two parameters govern how quickly the compressor activates when the signal level exceeds the threshold and how quickly it deactivates when the signal level reduces The optimum settings may need to be tuned by ear For more information see the Wikipedia article Dynamic range compression 3 4 6 Time delay A delay of up to 80 ms can be applied to each output channel To set the delay click in the delay entry box for a channel The delay value can be entered numerically and the up and down arrows can be used to change the delay in small 0 02 ms increments miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 26 hn The time delay corresponds to a distance This distance is shown in cm when the cursor is hovered over the time delay box The maximum time delay of 80 ms corresponds to a distance of approximately 27 5 meters about 90 feet Time delay can be calculated from distance using one of the following formulae Time delay in ms Distance in cm 34 4 Time delay in ms Distance in inches 13 54 Click on arrows to increase and lower ee I td EEEE a es Eeti Click and type to enter Rollover shows equivalent distance 3 4 7 Invert and mute Each channel can be inverted in polarity and individually muted When either of these options is selected the display changes color and the
31. label of the button reflects the current state Channel is inverted a a Inverted Channel is muted Muted 3 5 BASS MANAGEMENT The nanoAVR_BM plugin includes a dedicated tab for bass management named LFE Met LFE Mgt Routing Outputs When movies are mixed for the cinema each speaker is specified as a full bandwidth channel that is 20 Hz to 20 kHz although 40 Hz to 18 kHz for the speakers is considered acceptable in cinema and the mixing studio see the Grammy paper Recommendations For Surround Sound Production The Low Frequency Effects LFE channel is used for high level low frequency content and is fed to dedicated subwoofers in order to avoid overloading the speakers In a typical home theatre system some or all of the speakers are not capable of reproducing frequencies down to 40 Hz let alone 20 Hz The solution is bass management where low frequencies are filtered out from the speaker channels and sent to the subwoofer instead While 80 Hz is a common frequency used to separate content for the subwoofer and speaker channels the bass management feature allows any frequency to be used and any mix of frequencies to be used across different channels miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 2 ANNANN DSP FL In FR In LFE In CTR In SL In SR In RL In RR In OdB OdB 0dB OdB Above LFE Management screen Od
32. lters When an REW file is imported it will load into EQ1 through EQ6 MORE INFORMATION To learn how to use the auto EQ feature of Room EQ Wizard see this application note e Auto EQ tuning with REW For complete step by step guides to equalizing your home theater system with the nanoAVR and configuring bass management see the following application notes e Equalizing your home theater system with the nanoAVR and UMIK 1 e Bass management with the nanoAVR miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 39 nin 6 ADDITIONAL INFORMATION 6 1 SPECIFICATIONS Computer connectivity HDMII inputs HDMI outputs Analog outputs nanoAVR HDA only Audio sample rate Resolution Video support Audio processing Storage presets Infrared remote Power supply Dimensions H x W x D Driverless USB 2 0 control interface for Windows and Mac OS X Ethernet control RJ45 100Mbps with ZeroConf support autolIP DHCP 2 x HDMI 1 4a selectable from software front panel or IR remote Input sample rate 32 192 kHz 1x HDMI 1 4a output Output sample rate 96 kHz 8 unbalanced RCA outputs Output level 2 Vrms Dynamic range 103 dB THD 0 006 Output impedance 560 Ohms Input output resolution 24 bit 32 bit internal DSP internal processing path 96kHz Video pass through of selected source i e no video processing 36 bit 3D support HDCP
33. na essa ecaane naa tasasanesanenaiataee 15 2 2 2 AYLI so Qe ane mutans nee ee eer eter 16 3 Confipu rnnge THE NANOAY R oinisissvnacnv GancGeneebeenbenandee babe be aa iae EE 17 3 1 COMME CUE O USO Vie oisinnean EE NNE ENERE rE E 18 3 1 1 UD e anes soe ane se ses eens ouessane ciacuse sess emsauoesieuueaeeaatausueseesane aes 18 3 1 2 EES I cee ace ater ea ve ee we a eae alg he vats waa we creme E 18 3 1 3 OPO ersa 18 3 2 ODS E a E E E T enst oceseceersees 19 3 3 Conner ecen ai OCS erre E E E E E sees 20 3 4 Outp t channel SetU cressa eE ee ee eee eee eee 21 3 4 1 channe oDe eerren r EN 21 3 4 2 Gain control and level monitoring ssssssssessesresrrsrrersrrserresersrrserrrsrrsrrsevreserseeseereseeseeseereserseesere 21 3 4 3 Parame EO EE E E E cies bkceracerientinemioarnns 22 3 4 4 Crossover SettingsS s sesesssesesrsrsrsrersrrsererorsesesesrerorsrsrsrsesoesrsrsrsrsrsrseseserererereesrorsrsrsrsrseseseserereo 24 3 4 5 Gis 07 ogo O ere E E tr ree ere nee rar 26 3 4 6 TA CCV gees sec gees ca sees cannevaneneeatcesececes vac asacasesansetopues suse eusw atau ease ous u sa sasu sue sae sue eae mare nese 26 3 4 7 PT Te CN U ee serve ENEO 27 3 5 Bass Mandl EMENT arrr vite etic victse E NE E teste dacifaceen 27 3 6 VAIS OG E EEEE ENE A AEAEE NEEE ENEE E EN E EE E 29 3 7 MOPS Wie COM MS IG AU ONS r a N E E E E ceveceeereserises 30 3 7 1 Selecting ACO i SUN OU re erates etree ce rE esanosanenaseneuansunnssanosesenei 30 3 7 2 Saving and loa
34. nfiguration preset with the remote will cause the user interface to disconnect miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 34 ANNANN DSP 4 4 SMARTPHONE CONTROL APP The nanoAVR HD and nanoAVR HDA can be controlled with the miniDSP control app for Android and iOS smartphones and tablets To control the nanoAVR over the network connect an Ethernet from the nanoAVR s Ethernet port to a free port on your Ethernet router or switch The diagram below illustrates a typical case The network must be capable of DHCP so that the nanoAVR will be given an IP network address Ethernet router wireless basestation i Theatr air CAT 5 CAT 6 network cable e iOS scheduled for early 2015 5 HDMI Source HDMI port gt NANOAVR gt i i 192 168 121 141 SNNYN Volume e How would you like to connect to your device Master Mute p g T z F Dirac Live optional Wifi USB Presets i mini Preset3 Preset4 miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 35 ANNIN 5 ACOUSTIC MEASUREMENT To obtain most accurate equalization results with the nanoAVR acoustic measurement will be required This section provides a brief introduction For more information see the Applications section of the miniDSP com website 5 1 WHAT IS ACOUSTIC MEASUREMENT An aud
35. o rename a channel click on the channel label and type a new name up to eight characters 3 4 2 Gain control and level monitoring The gain of each channel can be adjusted by moving the Gain Adjustment slider or by typing the desired gain into the Current Gain text box The maximum gain setting is 12 dB and the minimum gain setting is 72 dB 0 dB the default is unity gain or no change in level The signal level on each output channel displays in two locations on the bar graph meter and as a numeric value in dB relative to full scale in the RMS Level box The RMS level displays only when the user interface is connected to the nanoAVR The level meters are useful in many situations For example when adding filters with boost monitor the level meters with typical signals and maximum levels to ensure that there is no clipping The meters can also be used during normal operation to monitor for or to help locate level or gain structure problems miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 21 nnn 3 4 3 Parametric EQ Parametric equalization PEQ is a flexible type of equalization filter It can be used to correct for errors in loudspeaker output to compensate for acoustic room effects and to tailor the overall system response for best sound Click on the PEQ button to open the parametric equalizer settings window 10 20 50 100 200 500 1000 2000 000 10000 20000
36. or notice 31 nin 3 7 3 Restoring to defaults Configurations can be reset to the factory defaults from the Restore menu There are two options Factory Default This selection clears all configuration data and resets all four configuration presets to the factory default settings Current Configuration Only This selection clears only the currently selected configuration preset and resets its data to the factory default settings If the user interface is connected to the nanoAVR the configuration data on the nanoAVR all or just one configuration as selected will also be reset to factory defaults Otherwise the reset will take place in the user interface only Any changes can then be made and the configuration will be downloaded to the nanoAVR next time it is synchronized 3 8 KEYBOARD SHORTCUTS The nanoAVR user interface supports the use of the keyboard for many operations Tab The Tab key moves the focus from the current user interface element to the next A light blue surrounding box usually indicates the user interface element with the focus For example after changing the gain of an output channel the Tab key moves the focus to the next channel so that the arrow keys can be used to change that channel s gain Shift Tab moves the focus in the opposite direction Up down arrows The up down arrow keys and in some cases the left right arrow keys adjust the value of many parameters e Output channel gain e Crossover
37. or work network E Public networks such as those in airports and coffee shops not recommended because these networks often have litte or no security What are the risks of allowing a program through a firewall a Allow access 2 2 2 MacOSX On versions of OS X from 10 7 Lion and later you will need to inform the GateKeeper program that it is OK to install and run this software Go to System Preferences then click on Security amp Privacy and select the General tab 1 Click on the padlock icon in the lower left corner and enter your password in order that you can make changes to the settings 2 Under the text Allow Applications downloaded from click on Anywhere Allow applications downloaded from Mac App Store _ Mac App Store and identified developers e Anywhere Then download and install the following programs You will need to accept the license agreements in order to successfully complete the installation e Latest version of Adobe Flash e Latest version of Adobe Air If you haven t updated these recently you should download and install the latest versions prior to running the miniDSP install program To install the miniDSP software open the Mac folder of the download and double click on the nanoAVR_BM dmg file to open it in a new window Then double click on the installer program Install nanoAVR_BM app Once installation is complete the nanoAVR plugin user interface will autom
38. ram below In this case volume control is done digitally in the nanoAVR HDA itself using a remote control or the miniDSP smartphone app The analog outputs of the nanoAVR HDA can also be connected to multichannel analog inputs of an A V receiver A V preamp or any other component with multichannel analog inputs nanoAVR HDA HDMI output TV Monitor Projector fo e o o Ee o oun ISP We Analog audio 7 1 Powered Multichannel subwoofer power amplifier HDMI inputs Blu ray DVD Player Streaming media player b Loudspeakers miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 10 nin 2 INSTALLATION AND SETUP 2 1 HARDWARE CONNECTIVITY All connections to the nanoAVR are made on the rear panel 2 1 1 HDMI input and output Two HDMI connections are available for input and one for output The input connectors can be connected to any HDMI source such as a Blu ray or DVD player Other sources may include media streaming devices gaming consoles and computers with an HDMI port The HDMI output will need to be connected to an HDMI input on an A V receiver AVR or A V processor AVP In the case of the nanoAVR HDA the HDMI output can be connected directly to the display device TV monitor or projector E USB 2 0 DC 5V HDMI IN 1 HDMI IN 2 HDMI OUT S 5 Mo co Input Output Blu ray
39. rence by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Notice Shielded interface cable must be used in order to comply with emission limits miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 6 nin Notice Changes or modification not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment CE MARK STATEMENT The nanoAVR HD HDA has passed the test performed according to European Standard EN 55022 Class B WHAT S INCLUDED Your nanoAVR package contains e One nanoAVR HD or nanoAVR HDA HDMI audio processor e Universal 5 VDC power supply with interchangeable power pins e One USB cable for computer connectivity e One Ethernet cable e One HDMI cable e Printed Quick start Guide A NOTE ON THIS MANUAL This User Manual is designed for reading in both print and on the computer If printing the manual please print double sided The embedded page size is 8 x 11 Printing on A4 paper will result in a slightly reduced size For reading on the computer we have included hyperlinked cross references throughout the manual In addition a ta
40. s selected Changes are not lost between quitting and restarting the user interface 3 7 1 Selecting a configuration The current configuration is selected by one of the four buttons in the Configuration Selection area By default configuration 1 is selected Configuration Selection Wenig Config 2 Config 3 Config 4 To switch to a different configuration click on a different button If the interface is live real time processing in the nanoAVR will be updated to the newly selected configuration and audio processing will then continue If however the selected configuration has changed in the user interface since the newly selected configuration was last synchronized to the nanoAVR then a dialog will appear asking you if you want to synchronize the local configuration to the nanoAVR miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 30 hn If the user interface is not connected then the screen will update to show the parameters of the newly selected configuration If this configuration is changed in the user interface it will be downloaded to the nanoAVR next time it is synchronized recommend that each configuration be selected and checked initialized prior to connecting to the Note because of the potential for a selected configuration to be in an unknown state we A nanoAVR for the first time 3 7 2 Saving and loading configurations Configurations can be saved to and
41. sion Both Platforms For USB connectivity e USB 2 0 port For Ethernet connectivity via LAN e Ethernet router with spare 100 Mbps port For direct ZeroConf Ethernet connectivity e Ethernet port on computer with 100 Mbps capability Apple Macs a Thunderbolt port with a Thunderbolt to Ethernet adapter miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 5 nin DISCLAIMER WARNING miniDSP cannot be held responsible for any damage that may result from the improper use of this product or incorrect configuration of its settings As with any other product we recommend that you carefully read this manual and other technical notes to ensure that you fully understand how to operate this product The nanoAVR is a powerful tool and misuse or misconfiguration such as incorrectly set gains or excessive boost can produce signals that may damage your audio system As a general guideline you should perform the initial configuration of your nanoAVR before enabling audio through any connected output device or amplification Doing so will help ensure that the software is correctly configured Finally note that the nanoAVR is a very flexible device and many of the questions we receive at the tech support department are already answered in this user manual and in the online application notes on the miniDSP com website So please take the time to carefully read this user manual and the online te
42. sponding left and right channels are linked front left and right surround left and right and rear surround left and right To link a channel select the other channel from the drop down menu at the top left of the PEQ screen and click the Link checkbox FR Out L Link Select Channel FR Out SUB Out CTR Out aL Out miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 23 nnn 3 4 4 Crossover settings Each output channel has independent high pass and low pass filters Click on the Xover button to open the crossover settings window 5 9 12 15 18 21 24 27 30 10 20 50 100 200 500 1000 2000 5000 10000 20000 Advanced HIGH PASS FILTER SETTINGS LOW PASS FILTER SETTINGS Cut off frequency 16 Cut off frequency 80 Filter Type BW 428dBioct Filter Type LR 24dB oct Bypass filter BYPASS Bypass filter BYPASS By default the crossover filters are bypassed disabled Click on the Bypass button to enable and disable a crossover filter There is one filter for high pass low cut and one for low pass high cut The above example shows a pair of filters for the subwoofer channel with an 18 Hz high pass filter and an 80 Hz low pass filter Each filter can be set to one of a range of filter types and slopes The filter type determines the shape of the filter around the crossover point and the filter slope expressed in dB octave determines how steep the filter cutoff is The a
43. th EQ Shelving filters can also be used to alter the frequency response For example if more weight in the bass is desired this can be accomplished with a low shelf filter with some boost of 3 to 6 dB Or if less high treble emphasis is desired this can be accomplished with a gentle high shelf filter with a few dB cut at high frequencies miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 38 P h amp D4 N C puu v s Fm E D g i gt Y 5 3 2 Automated method Room EQ Wizard can be used to automatically calculate a set of parametric equalization filters In brief the procedure is as follows 1 Runa frequency response measurement with REW 2 Inthe REW Equalization window generate a set of correction filters 3 Export the generated filter to a file 4 Setthe nanoAVR parametric filters to Advanced mode and import the file Figure 4 illustrates a frequency response correction curve generated by Room EQ Wizard 15 10 5 5 pm I V 10 v 15 20 l 10 20 50 100 200 500 1000 2000 5000 10000 20000 PARAMETRIC EQ biquad1 CLEAR BAND 1 b0 0 9983552279164896 IMPORT lt OE b1 1 9955474641121116 PROCESS Basic Advanced BYPASS Figure 4 Auto EQ generated with Room EQ Wizard Filters generated by REW can be combined with manual filters To do so use EQ7 through EQ10 for the manual fi
44. the With the plugin running disconnect the Ethernet cable and board by Ethernet reconnect it 5 No audio or video Check that all HDMI cables are securely seated Check that HDMI cables are plugged into the correct inputs and the correct outputs Check that each unit TV AVR nanoAVR has the correct HDMI input selected Check the source is actually playing video and audio Power cycle the system Turn off all equipment and after waiting a minute turn equipment on again in the following order TV display AVR or AVP nanoAVR source player Leave a few seconds between powering on each unit Video but no audio Check that your source player is set to output Linear PCM over HDMI the nanoAVR does not decode compressed formats such as Dolby or DTS Check that your audio device supports 96 kHz sample rate some devices such as TVs support only 48 kHz Start the user interface and press the Connect button Then Check that global mute is not enabled Check that individual channels are not muted Check that Master Volume is not at a low level Double check the routing screen to ensure that inputs are correctly routed to outputs miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice Check that the output level meters are displaying signal Check that the HDMI output device AVR or AVP is not muted Cannot reload a Confirm the file format of your file
45. the factory defaults When using this option the HDMI output device should be muted until you have set the configuration to a working state Help This option brings up a help screen explaining the options Cancel This option cancels the attempt to connect to the nanoAVR The user interface will remain disconnected 3 2 GLOBAL SETTINGS The nanoAVR has four configuration presets stored in memory The presets can be selected from the plugin from the front panel or via remote For more information on using configurations see Working with configurations below By default configuration 1 is selected Configuration Selection Weru gi Config 2 Config 3 Config 4 A drop down menu allows either HDMI 1 or HDMI 2 to be selected as the input source Source HDMI 1 Channel Mode 0M1 HDMI 2 The Mute button disables all audio output a a x Mute Muted The Channel Mode selector controls how the nanoAVR outputs audio over HDMI See Channel mode below miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 19 IN DSP 3 3 CONFIGURE SIGNAL ROUTING Click on Routing in the Selection tabs The input channels are labeled along the left and the output channels along the top FL Out FR Out SUB Out CTR Out SL Out SR Out RL Out RR Out an ME CTR 1n od8 SL In od8 RRI od8 The LFE Mgt row is the output from the LFE Mgt screen For information see Bass Management below Ea
46. vailable filter types and slopes are Butterworth BW Available in 6 12 18 24 30 36 42 and 48 dB octave Butterworth crossover filters are 3 dB down at the cutoff frequency Linkwitz Riley LR Available in 12 24 and 48 dB octave Linkwitz Riley crossover filters are 6 dB down at the cutoff frequency Bessel Available in 12 dB octave only a Bessel filter gives a more gradual roll off through the crossover region miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 24 hn For other types of filter and filter slopes use Advanced mode This mode allows you to enter the coefficients of eight biquads directly into the interface The coefficients will need to be calculated by a filter design program A useful spreadsheet for a number of filter types is available on the miniDSP com website see the application note Advanced Biquad programming biquad1 bO 0 000027136606 757459565 b1 0 00005427321751491917 PROCESS b2 0 000027136608757459585 BYPASS a1 1 9795591346653545 a2 0 9796676811003843 Each channel can be linked to one other channel When a channel is linked to another the crossover settings of that channel are mirrored to the other Typically the corresponding left and right channels are linked front left and right surround left and right and rear surround left and right To link a channel select the other channel from the drop down menu at the top

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