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744T User Guide and Technical Documentation

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1. 60 HP Monitor Modes Select the sequence of the modes that Up to 20 source selections can be entered in appear in the Headphone Source Display any order See headphone monitor section in on the LCD guide for adjustment 61 HP Favorite Mode Selects the audio source monitored when e inputs 1 2 e track C the Multi Function Controller is pressed inputs 3 4 e track D during recording or playback e tracks A B e monitor A etracks C D monitor B e monitor A B monitor C e monitor C D e monitor D e input 1 inputs 1 2 MS e input 2 e inputs 3 4 MS e input 3 e tracks 1 2 MS e input 4 e tracks 3 4 MS e track A e monitor 1 2 MS e track B e monitor 3 4 MS 62 HP Playback Mode Selects the audio source sent to head nochange e track C phones upon playback e inputs 1 2 e track D e inputs 3 4 e monitor A e tracks A B monitor B e tracks C D e monitor C e monitor A B e monitor D e monitor C D inputs 1 2 MS input 1 e inputs 3 4 MS e input 2 e tracks A B MS input 3 e tracks C D MS e input 4 e monitor A B MS e track A e monitor C D MS e track B 63 HP Warning Bell Level Set the output level of the multi function off 60 to 12 dBFS in 1 dB steps warning bell 64 Tone Level Set the output level of the reference tone 40 to 0 dBFS in 1 dB steps 65 Tone Frequency Allows the user to set the frequency of 10
2. 744T User Guide and Technical Information Right Panel Connectors and Controls by AMBIENT l MENU SELECT OUT C LINK IN DC IN 10 18V PIN 4 PIN 1 Time Code Multi Pin Time code input and output on 5 pin LEMO connector AES3id Inputs 1 2 and 3 4 Unbalanced digital inputs accept four channels of either AES3 or S PDIF on BNC connectors FireWire IEEE 1394 Port Connection to a computer to access the internal hard drive and Compact Flash volumes as mass storage devices Direct connection to Mac OS X only and Win dows XP and 2000 only computers C Link In Out RS 232 protocol interface on 6 pin modular RJ 12 connector for link ing multiple 722 and 744T recorders together Word clock machine transport and time code are carried on the C Link connector External DC In Accepts sources of 10 18 volts DC for unit powering and removable Li ion battery charging The Hirose 4 pin con nector is wired pin 1 negative pin 4 positive Pin 2 and pin 3 are used to charge the removable Li ion battery DC ground at both pins 2 and 3 is at the same potential as chassis and signal ground Word Clock Input and Out Provides clock input and output for the 744T Word input accepts sample rates between 32 kHz and 192 kHz Word clock output is the rate that box is run ning There is no sample rate conversion onboard the 744T AES3id Output Bus 2 Unbalanc
3. Headphone Output The 744T headphone output is a flexible tool for monitoring audio in the field The 744T allows the user to monitor inputs tracks or post record tracks The headphone output is independent of the Master Output Bus and Output Bus 2 audio sources can be routed to headphones independent of routing assignments to output buses The 744T is capable of driving headphones to extremely high sound pressure levels Hearing experts advise against exposure to high sound pressure levels for extended periods Choosing Headphone Sources The headphone source display on the main LCD screen lo AE shows the audio sources sent to headphones The 744T comes from the factory with 10 preset headphone audio source selections available on the Multi Function Controller These selections include inputs tracks and track moni tors Turn the Multi Function Controller on the right panel when at the main LCD screen to select among the available headphone monitoring sources Track Monitor The 744T can monitor recorded audio from the internal hard drive or Compact Flash while record ing To monitor recorded tracks select one of the track modes with an m following the track designations Because of the record buffering of the 744T a delay of up to 12 seconds can be expected before recorded audio appears at the output The 744T will play back recorded audio from the media highlighted on the LCD panel see File Management and Copying for m
4. When external code advances the 744T enters record mode automatically When the external code is stopped the 744T generator pauses and recording is stopped If the external time code is removed the internal generator continues to run to preserve continuous time code Useful for time code transmission over RF where RF hits may interrupt time code This is appropriate when dual system sound is used with video cameras set for Rec Run time code The video camera will function as master time code and the recorder will follow SOUND Q DEVICES 744T User Guide and Technical Information In Free Run Jam Once and all four external time code modes time code is recalculated back stamped when external static time code advances after the 744T begins recording If external time code does not advance the file will be stamped with the stopped time code number Back stamping the file allows the audio time code to properly correspond to picture time code if sound rolls before picture in a video Rec Run environment Jam Menu incoming received timecode or zero value G0 00 60 60 MRE press to jam menu selection 44 EDIT VALUE 10 52 42 05u 744T current timecode value Time code setup is done from the jam menu Timecode JamMenu Pressing the drive key and menu keys simultaneously quickly enters the jam menu In this menu the top of the display shows the value of signal present on the time code input and the bottom of
5. chandise authorization before sending your unit in for repair Product returned without an RMA number may experience delays in repair When sending a unit for repair please do not include accesso ries including CF cards batteries power supplies carry cases cables or adapters unless instructed by Sound Devices Sound Devices LLC Service Repair RMA XXXXX 300 Wengel Drive Reedsburg WI 53959 USA telephone 608 524 0625 Technical Support Bug Reports For technical support and bug reporting on all Sound Devices products contact Sound Devices LLC E mail support sounddevices com web www sounddevices com contact_support htm Telephone 1 608 524 0625 Toll Free in the U S A 800 505 0625 Fax 608 524 0655 Sound Devices hosts a support forum for 7 Series recorders The URL is www sounddevicesupport com Sound Devices cannot guarantee that a given computer software or operating system configura tion can be used satisfactorily with the 744T based exclusively on the fact that it meets our minimum system requirements Please check with your software editing application to make certain that it is compatible with the file type selected SOUND Q DEVICES er 744T User Guide and Technical Information Software License End user license agreement for Sound Devices 7 Series Embedded Software Firmware Important Read carefully This Sound Devices LLC end user license agreement EULA is a legal agreement
6. microdrive compatible FAT32 formatted up to 2 TB addressable File Types WAV or BWF AES 31 format mono or polyphonic at supported Fs 24 bit or 16 bit MP3 64 96 128 240 or 320 kb s stereo Utilities Format speed test and repair utility for internal HD and CF volumes Data Transfer Control FireWire peripheral mode IEEE 1394a compliant 6 pin FireWire Windows 2000 XP Mac OS X only C Link 6 wire modular input and output RS 232 machine control word clock time code transfer Time Code Modes Supported free run record run 24 hour run continuous jam Frame Rates 23 976 24 25 29 97DF 29 97ND 30DF 30ND Accuracy lt 0 2 ppm when tuned with Ambient Master Controller holds TC clock for 8 hours after main bat tery removal AA time code battery installed after 8 hours retains time of day Powering Internal Voltages 16 VDC regulated audio rails 5 VDC data 3 3 VDC data 1 5 VDC DSP core 48 VDC phantom power Power supply batteries operating cell removable 7 2 V nominal Sony M or L type Li ion operational from 6 8 V time code battery 1 2 V AA nickel metal hydride Power supply external Environmental Operation and Storage Other LCD Display 10 18 V 1000 mA minimum via locking 4 pin Hirose connector use Hirose HR10 7P 4P Digikey HR100 ND for locking mating DC connector pin 1 pin 2 pin 3 pin 4 See Powering section for additional details
7. ometer controls the signal level of both inputs and the channel 2 pot controls the left to right balance of the pair When the inputs are linked their peak limiters are linked as well When set as an MS pair the inputs gain and balance for the pair work the same as stereo linking There is no stereo width control as an MS pair since gain is adjusted High Pass Filters microphone level only The high pass filters on the microphone inputs use a combination of analog and digital filters to re duce sensitivity to low frequency signals When the high pass is engaged on an input its front panel LED illuminates to indicate it is active ee The first pole of the high pass circuit is an analog filter at 40 Hz 6 dB per octave and is part of the microphone preamplifier circuit Additional poles of high pass filtering are done in DSP Several frequency and slope combinations are selectable including corner frequencies of 40 80 160 or 240 Hz and filter slopes of 12 dB 18 dB or 24 dB per octave The high pass is selected for each input independently Shortcut The filters can be toggled with a two key combination Press and hold the LCD back light key and press the menu key for channel 1 high pass Press and hold the LCD backlight key and press the HDD key to toggle channel 2 high pass Gain Range microphone level only The microphone inputs operate in two gain ranges normal and low The normal range is from 25 dB to 70 dB of gain Th
8. 25 dB to 70 dB low gain mic range is from 10 dB to 55 dB line input range is from 6 dB to 18 dB For line level inputs this control can be defeated and gain can be setup menu controlled If the LCD display shows locked when the pot is turned gain control of the line level input is menu controlled When inputs are linked as a stereo pair Input 1 Gain controls the gain of both inputs Input 2 Gain Controls input 2 gain as in 2 above When inputs are linked as a stereo pair Input 2 Gain controls left to right bal ance MENU Key Used to access all 744T setup menu selections When in menu mode used to move up through the menu selections Pressing the HDD and MENU keys simultaneously brings up the time code jam menu a LCD Display Primary display of 744T status The LCD is backlit using the LCD backlight control 15 Tone Oscillator Tone frequency tone level and routing are controlled in the setup menu Press and hold to activate the tone oscillator Input to Track Matrix LEDs Blue LEDs indicate inputs 1 2 3 4 enabled for recording to tracks A B C D Asolid blue LED indicates an input is routed to a track A flashing LED dur ing custom routing mode shows the selected input track combination INPUT Select Key Pressing this key cycles through the six factory preset input to track routing combinations plus the custom routing menu In the custom routing menu any input
9. 3 and 4 use TA3 connections Digital inputs can be either AES3 balanced XLR or AES3id BNC inputs One analog pair and one digital pair can be used simultaneously Input Source Selection Input sources are selected in pairs 1 2 and 3 4 Each input pair 1 2 and 3 4 accepts analog or digi tal audio The XLR input signal is selected with slide switch above the connector Inputs 3 and 4 are selected from the setup menu Manually selecting the audio source is used to force the inputs to analog while using an AES3 or AES3id input to lock the 744T to an external sample rate Digital sources connected to AES3id BNC inputs override analog signals on the correspond ing XLR input The BNC input signal type is set in the menu settings Input 1 2 Source and Input 3 4 Source For most situations the appropriate setting is auto select the 744T will choose the input type based on signal present The 744T is capable of off speed sample rates when clocked from either external digital inputs or the word clock input Input sources can be set to disabled power save This option shuts down all circuitry associ ated with an input pair to reduce power draw and extend battery runtime When an input pair is disabled the digital input LEDs associated with the pair will slowly flash In playback only applica tions both input pairs can be shut down to maximize power efficiency and battery runtime Analog Inputs 1 and 2 Analog inputs
10. 744T automatically splits an audio file before the 4 GB size is reached and begins writing to a new file When joined in an editing program these files match seamlessly with no samples lost The 744T has menu selectable file size maximums of 650 MB 1 GB 2 GB and 4 GB The 650 MB size allows the user to break an audio pro gram into CD R sized files for backup to inexpensive CD R medium There is also a selection of sizes to ensure that files recorded will fit onto common Compact Flash card capacities File Copying Between Internal Drives Audio files are easily transferred between CF and the 744T s hard drive File transfer is initiated with the setup menu option File Copy File Select The Copy File Select menu has four options for each media type Copy All Media gt Medial Copies all files from one media to the other Last 24Hr Media gt Media Copies files created in the last 24 hours between media Last 48Hr Media gt Media Copies files created in the last 48 hours between media Flagged Media gt Media Copies all files with their archive bit set between media Once file copying has begun the 744T searches the source media for the selected files The 744T will then search the destination drive looking for duplicate file names The LCD will report the number of files found the number of duplicates found and the net number of files to be copied and prompt to continue Pressing the enter key or controller
11. Ambient temperature 5 55 C Relative humidity non condensing lt 80 202 x 32 pixels extended temperature backlit display Tone Oscillator 100 Hz 10 kHz variable output assigned to tracks or outputs menu selectable Quick Setups Four factory presets one user setup stored to CF or HD as data file Dimensions and Weight Size 45 mm x 209 mm x 125 mm H x W x D 1 8 x 8 2 x 4 9 Mass unpackaged 1 2 kg 2 6 lbs without battery SOUND Q DEVICES 744T User Guide and Technical Information Connector Pin Assignments Each connector type electrical characteristics and pin assignment is shown below Connector Pin Assignments Notes XLR 1 ground 4000 ohm input impedance mic level Analog Inputs 2 signal 20k ohm input impedance line level 3 signal active balanced XLR 1 ground transformer balanced for use 110 ohm twisted pair AES Inputs 2 signal cabling AES3 specification 3 signal TA3M 1 ground 20k ohm input impedance line level Inputs 2 signal active balanced Mates with Switchcraft TASF type con 3 signal nector TA3M 1 ground 120 ohm output impedance active balanced Master Output Bus 2 signal For unbalanced connection pin 1 ground pin 2 hot lau 3 signal pin 3 not connected Mates with Switchcraft TA3F type E Y connector 3 5 mm tip signal L Master Output Bus signal in an unb
12. Any file recorded by the 744T can be played back including MP3 file playback In addition files copied to the storage mediums from a computer can be played back This is useful when using the 744T as a high resolution playback device The 744T plays back the last recorded audio file unless another file is selected There are two ways to select another file for playback To select another file in the current record directory push either the FastForward or reverse key to put the 744T in to play stop mode The filename display will begin flashing and the FastForward and Reverse keys are used to step through files available in the current record directory To select a file in an alternate directory press the HDD key to enter the media direc tories Navigate to the appropriate directory Select the file that to play back with the Multi Function Controller and press play If the stop key is pressed while playing files from an alternate directory the 744T will revert to the current daily directory AutoPlay The 744T can be set to play back all valid audio files in a directory Files will play back in their order in the directory Autoplay can be set with the following options Disabled auto playback is off Play all all files in the directory will play then stop when all files have been played Repeat one the selected file will play back continuously until stopped by the user Repeat all all files in the directory will play in success
13. IN LINE IN E i NG LINE OUT y 1 A OO Q TAPE OUT XLR Input 1 AES3 Input 1 amp 2 Dual function input connection Input type set with switch above Active bal anced analog microphone or line level input for input 1 Transformer balanced two channel AFS3 input 1 and 2 XLR Input 2 AES3 Input 3 amp 4 Dual function input connection Input type set with switch above Active bal anced analog microphone or line level input for input 2 Transformer balanced two channel AFS3 input 3 and 4 Mic Line AES3 Input Switch Selects the input level and mode of the associated XLR input connector TA3 Channel 3 amp 4 Line Inputs Active balanced line level input connec tors Pin 1 ground pin 2 pin 3 TA3 Master L R Analog Outputs Active balanced line level analog L R outputs for the Master Output Bus Pro gram source and attenuation level are user selectable Pin 1 ground pin 2 pin 3 Headphone Output 3 5 mm TRS stereo headphone connec tor Can drive headphones from 8 to 1000 ohm impedances to very high lev els Tip left ring right sleeve ground SOUND Q DEVICES 7 O Headphone Volume Adjusts the headphone volume NOTE the 744T is capable of producing ear damaging levels in headphones Tape Output Unbalanced tape 10 dBv nominal output on 3 5 mm TRS stereo connector Signal source is identical to the Master Output Bus Tip left ring right sleeve ground
14. P Select Key Custom Route 15 Input 1 48V Phantom Enables or disables 48 V phantom power Off 16 Input 2 48V Phantom on inputs 1 and 2 e On Mic On Mic and Line 17 Mic Inputs Limiter Enables or disables the analog input e Disabled limiter on input 1 and 2 mic preamps Enabled 18 Mic Input 1 Low Cut Enables the high pass low cut filter to Disabled 19 Mic Input 2 Low Cut reduce sensitivity to low frequencies Enabled 20 Mic Input 1 Low Cut Freq Selection of twelve high pass filter 40 80 160 240 Hz 12 dB oct 21 Mic Input 2 Low Cut Freq frequency and slope combinations for e 40 80 160 240 Hz 18 dB oct microphone inputs 40 80 160 240 Hz 24 dB oct 22 lt Mic Input 1 Gain Range Selects the sensitivity of the microphone e Normal 23 Mic Input 2 Gain Range input Low sensitivity is used for very e Low loud and or very hot microphones 24 Input 1 2 Source Forces the inputs to analog or digital e Auto select 25 Input 3 4 Source mode Default is auto select Analog e Digital S PDIF AES e Disabled Power Save 26 Input 1 2 Linking MS Selects whether the input 1 amp 2 levels are e Unlinked controlled independently or grouped asa Inputs 1 and 2 operate independently pair with or without mid side decoding e Linked 1 2 Inputs are linked channel 1 pot controls _ level channel 2 pot controls
15. Time Code Rate Shows the set time code frame rate If a file has time code information embed ded the playback frame rate is indi cated If external time code is connected and the external rate differs from the rate set internally the time code rate will flash Headphone Source Display Indicates the source for headphone out put Sources and selection order are user selectable in the setup menus Time Code Display In stop and record shows the time code generated by the 744T In play mode the display shows the play file s time code information if available If non time code files are playing the display shows dashes SOUND Q DEVICES 744T User Guide and Technical Information 10 External Media Space Status 11 a space remaining record ready Not available on version 1 xx firmware Bar graph indicates amount of record time remaining on the external FireWire vol ume Numbers show time in hours and minutes based on the presently selected number of record tracks sample fre quency bit rate and file type Internal Hard Drive Status space remaining record ready Bar graph indicates amount of record time remaining on the internal hard drive Numbers show time in hours and minutes based on the presently selected of number of record tracks sample fre quency bit rate and file type 12 Compact Flash Status space remaining record ready Bar graph indicates amount of record time remaining on the Compac
16. WAV poly aa firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Parameter Media Select Marker Mode Marker Pre Roll Auto File Split Size Output Bus 1 Source Output Bus 1 Attenuation Output Bus 2 Source Output Bus 2 Attenuation HPMon1 HPMon2 HPMon3 HPMon4 HPMon5 HPMon6 HPMon7 HPMon8 HPMon9 HPMon10 HPMon11 Number of HP Monitor Modes Headphone current mode Headphone favorite mode Encoder Switch Function Custom Route Value Input Routing Timecode Userbits U value Low Word Record Folder Options Tone Level Tone Frequency Tone Mode Ch 1 Phantom Ch 2 Phantom Input 1 2 Source Input 1 2 Control Line Input 1 Gain Line Input 2 Gain External Voltage Threshold Clear Source Flag Bit After Copy Autoplay mode HP Monitor Playback Mode Factor Prese CF amp Hard drive Off Off 4 Gb Tracks A B 0 dBFS Tracks C D 0 dBFS Inputs 1 2 Inputs 3 4 Tracks A B Tracks C D Input 1 Input 2 Input 3 Input 4 Mon A B Mon C D End of list 10 Tracks A B Tracks A B Favorite Mode 4 Track Daily 20 dBFS 1 kHz Trks amp Outs Off Off Auto Select Knobs 0 dB 0 dB 11 0V Enabled Play All Tracks A B Film Reporter Preset Preset Ta drive Hard drive New file New file Off Off 4 Gb 4 Gb Tracks A B Tracks A B 0 dBFS 0 dBFS Tracks C D Tracks C D 0 dBFS 0 dBFS Inputs 1 2 TracksA B Inputs 3 4 End of list
17. all sources have been chosen select DONE and press ENTER This will exit the headphone monitor mode setup You can exit the selection process by pressing the stop or cancel backlight key at any time If you press done in the first headphone slot the 744T will select a single option Tracks A B for head phone monitoring The 10 factory presets will be erased Multi Function Controller Encoder Behavior The action of the Multi Function Controller during recording and playback is set from among the four available options Disabled pushing the controller has no effect EJ firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Metering e Selects Favorite Mode places the headphone source into the mode selected in the HP Favorite menu e Headphones to C D meters shows the level of the headphone output on the C D track me ters e Playback Monitor Drive Select pushing the controller toggles between the available media to select the drive available for playback and track monitor while recording Headphone Favorite Selection If Selects Favorite Mode from the choices above is selected a press of the Multi Function Control ler selects the assigned Headphone Favorite source This feature is helpful to quickly return to a selected headphone monitoring source while recording or playing One of the available headphone sources can be selected
18. and music presets allow for quick setup of typical param eters for the defined application Presets are applied by entering the setup menu and selecting the preset All previous settings are lost when a preset is applied Parameter Prese preset Breset Presei Sample Rate 48 Khz 48 Khz 44 1 Khz 44 1 Khz Bit Depth 24 bits 24 bits 16 bits 16 bits Input 1 2 Gain Controls Unlinked Unlinked Unlinked Linked Record Dither Off Off On On Pre Roll Recording Buffer Time 2 2 2 2 Input 1 Delay 0 0 0 0 Input 2 Delay 0 0 0 0 Input 3 Delay 0 0 0 0 Input 4 Delay 0 0 0 0 LED Brightness 10 10 10 10 LCD Backlight On On On On LED Backlight Mode Normal Normal Normal Normal LCD Contrast 50 50 50 50 Meter Ballistics Peak VU Peak VU Peak VU Peak VU Input 3 Gain 0 dB 0 dB 0 dB 0 dB Input 4 Gain 0 dB 0 dB 0 dB 0 dB Input 3 4 Source Auto Auto Auto Auto Input 1 Low Cut Filter 12 dBlOct 12aBlOct 18dB oct 12 dB Oot Input 2 Low Cut Filter 1298 0 1248 0 1808 0 12 dB oct Input 1 Low Cut Off Off On On Input 2 Low Cut Off Off On On Limiters Enable On On On On Transport Error Mode Continue Continue Continue Continue Track Peak Threshold 0 dBFS 0 dBFS 0 dBFS 0 dBFS Time Code Frame Rate 30 FPS 30 FPS 30 FPS 30 FPS Time Code Mode Free run Free run Off Off Time Code User Bits Mode mm dd yy tt mm dd yy tt Not Used Not Used Time Format 12 Hour 12 Hour 12 Hour 12 Hour Date Format MM DD YY MM DD YY MM DD YY MM DD YY Record File Format WAV poly WAV mono MP3 128
19. as the headphone favorite Headphone Playback Mode The user may select a headphone source that will automatically be selected by the 744T upon play back All headphone source selections are available for Headphone Playback Mode as well as No Change which leaves the headphone source set to the currently selected mode Headphone Play back Mode is controlled in the setup menu Warning Tones The 744T can generate an audible beep or warning bell in the headphones when an error has occurred The specific error will be reported on the LCD The output level of the warning bell can be selected from off or 20 to 12 dBFS in the setup menu Metering The 744T features a 76 LED 4 x 19 output meter The DSP controlled output meter provides a selec tion of ballistics and lighting intensities In addition peak indicators on input channels show clip ping activity Output Meter GOOOOOOOOOOOOO0OO GOOOOOOOOOOOD00C lt 0 dBFS track LEDs are programmable O OOOD I as peak LEDs ne 000000900000000000 0 dBFS to 20 dBFS 50 30 12 The meter uses energy efficient LEDs which are viewable in full sunlight The 744T output meter is unaffected by shock or extremes in temperature and humidity Meter ballistics are setup menu select able among VU Peak Peak Hold VU Peak and VU PeakHold The meter uses a non linear metering scale which increases meter resolution in the most important part of the scale From 50
20. button begins copying The LCD will report progress of the file being copied and the number of files remaining to be copied When file copy is complete the 744T will report the number of files successfully copies and show a progress bar showing the percentage of files successfully copied Error Conditions If a file is to large for the destination medium the 744T will give you the option to skip the it or can cel copying If an error occurs during file copying the 744T will prompt to cancel the transfer When the destination medium is full the 744T will report the error and end the transfer File Transfer FireWire ead Zaye Le 0 co pinn 000000 FireWire port Son cink Oe z T WORD CLOCK IN FireWire cable 744T to computer Software revision 1 xx does not support drive mirroring to external FireWire volumes EJ firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Powering The 744T s FireWire IEEE 1394 port makes transfer of recorded files to a delivery medium quick and easy When connected via a 6 pin Firewire cable the internal hard drive of the 744T will mount to the Mac or Windows platform as a local drive Using Windows Explorer Mac Finder or any other file utility files can be copied from the 744T directly to an edit system or to a host system for transfer to a rem
21. change Visit www sounddevices com for the latest documentation Recording and Playback While recording the power ff rew input tone and drive keys are disabled Stop recording by press ing and holding the STOP key The Stop key must be held for 150 ms or greater to end recording Although you can enter the setup menu during recording menu items that will affect recording are lined out in the menu list When using the recorded track monitor selection there is a sample rate dependent delay in the signal At 48 kHz sampling the delay is approximately 12 seconds This delay is due to the record buffering topol ogy Audio can not be monitored until it has left the record buffer and written to the recording media During recording subsequent presses of the record key can perform one of three setup menu se lected actions e no action e new cue cue markers are set within the file being written new file a new file is started with each press of the record key the take counter is increased by one When removing the CF from the 744T always observe the amber activity LED for the CF medium If it is lit wait until it goes out before removing the CF If you remove the CF while the LED is lit the file will be corrupted and there is a possibility of EAT corruption as well Playback Press play to begin file playback The 744T has high resolution playback circuitry and is appropri ate for any reference audio application
22. hard drive or CF Selected medium is shown in white type Press and hold to toggle between available mediums If only one media is present press and hold is disabled Pressing simultane ously with MENU opens the time code jam menu Headphone Output Peak LED Indicates overload of the headphone amplifier When lit the headphone cir cuit is overloading Reduce headphone level LIM LED Indicates that the microphone input limiters are engaged This LED does not show input limiting activity see descrip tor 27 Microphone Input Limiter LEDs Link LED Indicates that channels 1 and 2 are linked as a stereo pair In link mode in put 1 potentiometer controls gain input 2 potentiometer controls left to right balance Inputs can be linked as either a stereo L R pair or as a a Mid Side MS pair 744T User Guide and Technical Information 23 Media Ready LEDs Indicates storage media is present and available to record IN internal hard drive CF Compact Flash EX exter nal Firewire device EX not available in firmware version 1 xx Flashing indicates media problem 24 Media Activity LEDs 25 26 ma ed Indicates storage media read write activity IN internal hard drive CF Compact Flash EX external Firewire device EX not available in firmware ver sion 1 xx High Pass Filter LEDs Indicates that the high pass low cut filter is active for the input High pass only operates when the input is
23. set to microphone level Phantom Power LEDs Indicates that phantom power 48 volts is active for the individual input Phan tom can be applied to microphone or line level signals menu selected Panel Lock 27 Microphone Input Limiter LEDs 28 29 we Illuminates orange when limiting is oc curring on the microphone input If con stantly lit the microphone input is being hit with too hot of a signal Reduce the input sensitivity until limiting occurs infrequently Input Signal Presence LEDs Indicates presence of analog or digital signal and its relative level on each of the four inputs Input Peak Overload LED Indicates analog signal is approaching clipping 3 dBFS on each of the four inputs Press and hold the backlight key then the tone key to bring up the front panel Button Lock Screen Button lock prevents unintentional changing of settings or record status The 744T will display the current mode the LCD screen select the soft buttons to activate the appropriate button lock mode LOCK ALL LOCK _NON TRANSPORT BUTTONS UNLOCKED There are three modes e Unlocked all buttons are accessible and operate normally e Non Transport Lock All front panel controls are locked except the Record Stop Play Re wind and Fast Forward e Lock All All front panel keys are locked except the Record key The Record key is kept ac tive so the user can initiate recording after ent
24. sources Two factors need to be considered to calculate battery runtime battery power supply capacity and unit power consumption The best determination of your run time is to experiment with a given record ing setup The 744T power consumption varies over a range between 4 W to 20 W depending on active func tions The following functions have the most significant affect on power consumption Inputs Active analog inputs increase power consumption If recording from digital sources dis able analog inputs or inputs altogether to reduce power consumption If recording solely to inputs 1 and 2 disable inputs 3 and 4 to reduce power consumption Analog inputs and the microphone preamps draw current whether they are idle or active Active inputs draw 1 5 W compared to deactivated inputs Hard Drive Activity When the unit is recording to or playing back from the internal hard drive power consumption raises by approximately 2 W Microphone Powering Phantom powered microphones draw power for operation Up to 1 W can be drawn from the phantom supply Battery Chargers Depending on the charge state of the on board Li ion and the internal AA time code battery the charging circuit can draw 10 W from external DC Sampling Rate The 744T draws more power at higher sampling rates Each doubling of the sampling rate adds 1 W of power consumption Recording Time Calculation The calculation of available 744T re
25. the card If the card is formatted as a FAT32 volume the card will be ready to be se lected as a recording medium To reformat the CF medium follow the same procedure as formatting the hard drive substituting the CF menu selection for the hard drive The 744T can format and use Compact Flash cards with capacities of 64 MB and greater Formatting the CF rebuilds the FAT file allocation table and erases any audio or other data files present on the medium While some PC utilities can recover files immediately after formatting the drive consider that the files have been permanently erased FAT32 volumes generated by the 744T may not be compatible with numerous consumer electronic devices including entry level digital cameras EI firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation File Naming After recording to CF has stopped it may take several seconds for the 744T to finish housekeeping on CF When preparing to remove the CF always observe the amber CF activity LED If it is lit wait until it is off before removing the card If the CF is removed while the LED is lit at the very least the file will be corrupted and there is a possibility of EAT corruption as well Testing a EELINI SPEE e a CF cards varied widely in their write read throughput Later generation 24x and greater CF cards can reliably read and write multi track h
26. the original SOFTWARE Copyright All rights title and copyrights in and to the SOFTWARE PRODUCT including but not limited to any images photographs animations video audio music text and applets incorporated into the SOFTWARE PRODUCT and any copies of the SOFTWARE PRODUCT are owned by Sound Devices LLC or its suppliers The SOFTWARE PRODUCT is protected by copyright laws and interna tional treaty provisions Therefore you must treat the SOFTWARE PRODUCT like any other copyrighted material except that you may make copies as only provided below You may not copy the printed materials accompanying the SOFTWARE PRODUCT Restrictions on use Licensee may not distribute copies of the SOFTWARE or accompanying materials to others Licensee may not modify adapt translate reverse engineer decompile disassemble or create derivative works based on the SOFTWARE or its accompa nying printed or written materials Transfer restrictions Licensee shall not assign rent lease sell sublicense or otherwise transfer the SOFTWARE to another party with out prior written consent of Sound Devices LLC Any party authorized by Sound Devices LLC to receive the SOFTWARE must agree to be bound by the terms and conditions of this agreement Termination Without prejudice to any other rights Sound Devices LLC may terminate this EULA if you fail to comply with the terms and conditions of this EULA In such event you must destroy all copies of the
27. 0 10 000 Hz in 100 Hz steps the reference tone oscillator 66 Tone Mode Select the destination of the reference disabled tone or to disables it completely e to record tracks only e to outputs only to record tracks and outputs 67 In HDD Test Performs a write read speed test onthe Caution Drive test will disable process internal hard drive Data transfer speed is ing and mute outputs for duration of test measured in KB s Outputs will not return until test is exited 68 In HDD Space Shows the drive file system total size and space remaining on the internal hard drive 52 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation 69 Setup Name _ In HDD Erase Setup Description l Formats the internal hard drive Caution while various PC utilities are able to recover files from a re formatted drive once formatted old audio data is not accessible by the 744T Setup Menu Setup Parameters 70 In HDD Repair Runs a utility to repair minor errors in the directory FAT of the drive 71 CF Test Performs a speed test on the Compact Flash media installed Data transfer Speed is measured in KB s Caution Drive test will disable process ing and mute outputs for duration of test Outputs will not return until test is exited Shows the drive file system total
28. 1 and 2 on XLR connectors are the primary connections into the recorder These inputs accept balanced or unbalanced mic or line level inputs Gain control for mic inputs 1 and 2 is adjusted solely by the front panel push knobs Gain for the line level inputs can be controlled by the front panel potentiometers or menu settings Line input gain is controlled in 0 1 dB steps A digital input present on the BNC inputs will override an analog signal present on the XLR inputs un less the input source is set to analog in the setup menu In the setup menu the following functions can be controlled for analog inputs 1 and 2 Phantom Power mic and line level inputs Phantom power 48 volts can be activated for inputs 1 and 2 When active phantom is indicated by front panel LEDs ssv Phantom power is available for both mic and line level inputs Using line level inputs with microphones is useful in extreme SPL environments such as concert recording Make certain to turn off phantom power with line level output devices susceptible to damage from DC Shortcut To toggle phantom power without entering the menus press and hold the tone key then press the menu key for channel 1 Channel 2 phantom can be toggled by pressing the tone key then EI firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Input Setup and Control pressing the HDD key If the inputs are in l
29. In the setup menu the stop key is also used to exit from any menu returning to the main display 15 LCD Backlight Key Press to toggle LCD and keyboard backlighting Hold the key and turn the Multi Function Controller to adjust the brightness of LEDs In menu mode functions as the cancel key wm 16 Fast Forward Key When pressed in playback and play pause mode this key will advance fast forward through the played file Play pause is indicated by flashing A time on LCD Fast forward rate increases the longer the key is held In play stop mode indicated by flashing filename on the LCD the key selects the next file in the record folder either daily folder scene folder or main folder ed SOUND Q DEVICES Hardware Descriptions 17 Play Key 18 19 20 21 22 we a xw 7 Press to play the file displayed on the LCD If pressed immediately after recording is stopped the most recently recorded file is played Rewind Key When pressed in playback and play pause mode this key will rewind through the played file Play pause is indicated by flashing A time on LCD Rewind rate increases the longer the key is held In play stop mode indicated by flashing filename on the LCD the key selects the previous file in the record folder either daily folder scene folder or main folder HDD Drive Directory Key Press to enter the directory listing of the selected storage medium either internal
30. P3 files as well as record them This is very useful on set to play a person al MP3 audio library during downtime By definition of the file format MP3 recordings are limited to two tracks therefore only tracks A and B are available for assignment Time code is not a part of the MP3 format Even with time code enabled and running during MP3 recording time code will not be recorded with the file Recording and Playback Recording and playback of audio are unquestionably the most important functions of the 744T The user interface of the product has been designed to leverage the existing paradigm of a tape record er so that the unit is easily understood Recording and playback functions are quite similar to that of tape based machines however the nature of a non linear recording medium provides additional control not possible with tape based recorders Recording REC The largest most easily accessed control on the 744T is its record key Recording takes priority over all activity except for disk formatting disk speed tests and file transfers The 744T will immediately enter record mode whenever the record key is pressed When recording the adjacent red LED will illuminate to indicate that the unit is in record mode If no inputs are routed to tracks recording cannot take place Make certain that at least one record track is assigned for recording EJ firmware v 1 24 Features and specifications are subject to
31. S 31 BWF file specification The filename extension is user selectable between WAV or BWF Users wishing to record standard wave files should select the WAV extension Time code will be stamped at the head of the file but software that does not recognize the broadcast wave data chunk will simply ignore this added information SOUND Q DEVICES EJ 744T User Guide and Technical Information There is no difference between generated with WAV or BWF extensions except for the extension name The BWF files created by the 744T contain production information in the Broadcast Audio Extension data chunk Among the values recorded are time code stamp time code frame rate date and time of the original recording bit depth sample rate originating machine serial number All of the information contained in this chunk is available for post production If time code is turned off the unit will write files with a WAV extension only MP3 MPEG Layer 3 For music and voice recording applications where compressed audio is acceptable the 744T can record to industry standard MPEG Layer 3 MP3 audio files These data compressed files are gener ated using the built in MP3 codec Numerous data rates are available When recording MP3 files the time code generator will remain running internally but will not record time code to the file The only time reference available is the Absolute Time A Time of the file The 744T can play back M
32. SOFTWARE PRODUCT and all of its component parts Limited Warranty No warranties Sound Devices LLC expressly disclaims any warranty for the SOFTWARE PRODUCT The SOFTWARE PRODUCT and any related documentation is provided as is without warranty or condition of any kind either express or implied including without limita tion the implied warranties and conditions of merchantability fitness for a particular purpose or non infringement The entire risk arising out of use or performance of the SOFTWARE PRODUCT remains with you No liability for damages In no event shall Sound Devices LLC or its suppliers be liable for any damages whatsoever including without limitation damages for loss of business profits business interruption loss of business information or any other pecuniary loss arising out of the use of or inability to use this Sound Devices LLC product even if Sound Devices LLC has been advised of the possibility of such damages In any case Sound Devices LLC s entire liability under any provision of this evaluation license shall be limited to the greater of the amount actually paid by you for the SOFTWARE PRODUCT or U S 5 00 Because some states jurisdictions do not allow the exclusion or limitation of liability for consequential or incidental damages the above limitation may not apply to you Governing Law This agreement and limited warranty are governed by the laws of the state of Wisconsin 62 firmware v 1 24 Fea
33. SOUND Q DEVICES T4411 High Resolution Digital Audio Recorder with Time Code User Guide and Technical Information firmware rev 1 24 Sound Devices LLC 300 Wengel Drive Reedsburg WI USA l 1 608 524 0625 fax 1 608 524 0655 vo Toll Free 800 505 0625 www sounddevices com FireWire backside front cover Table of Contents Introduction Quick Start Guide 0cceee cence eee 3 Powering the Unit Menu Navigation Basics Connecting Audio Sources Routing Inputs to Tracks Recording Parameter Setup Time Code Setup Recording Playback FireWire File Transfer Front Panel Descriptions eseeeeeee 6 Panel Lock LCD Display Descriptions 0005 9 Left Panel Connectors and Controls 11 Right Panel Connectors and Controls 12 Back Panel Descriptions 0eeeeeee 13 Input Setup and Control eceeeeeaee 14 Input Source Selection Analog Inputs 1 and 2 Analog Inputs 3 amp 4 Signal Presence and Peak Indicator Digital Inputs AES3 Digital Inputs AES3id S PDIF Input Delay Input to Track Routing ceeeeeee eee 17 Outputs Analog and Digital 18 Master Output Bus Output Bus 2 Headphone Output cceeee eee eee 19 Choosing Headphone Sources Setting Headphone Source Options Multi Function Controller Encoder Behavior Headphone Favorite Selection Headphone Playback Mode Warning Tones Meter
34. T 44 1 kHz 96 096 kHz e48 kHz 174 4 kHz e 48 048 kHz 192 kHz e 88 2 kHz 3 Rec Bit Depth Sets the bit depth of the 744T recordings 16 bit l e 24 bit 4 Rec File Type Selects the file format type recorded to e WAV poly the selected medium WAV and BWF files e WAV mono are identical the only difference is the BWF poly e BWF mono file extension MP3 64 kb s 96 kb s 128 kb s 160 kb s e 192 kb s 256 kb s 320 kb s 5 Rec Media Select 6 Rec Scene Name Number Selects the storage media used for recording Media is selectable even if it is not present _ User defined alpha numeric file scene name e IN HDD Only e CF Only e IN HDD and CF l lt up to 9 alpha numeric characters can be entered for the scene name gt Scene name can also be left blank 7 Rec Take Name Number Numeric auto incrementing number used for take identification lt selectable alpha character integers up to 82000 with or without preceding 0 s gt 8 Rec Take Reset Mode Defines when take numbers are reset _ Reset brings take number to lt 1 gt e Never take numbers do not reset e When scene is changed take resets when scene name is changed e When daily folder is changed takes reset on new day e Either scene or daily takes reset on either change 9 Rec Pre Roll Time Selects the
35. Tracks A B Tracks C D Input 1 Input 2 Input 3 Input 4 Mon A B Mon C D End of list 10 1 Tracks A B Tracks A B Tracks A B Tracks A B Favorite Mode Favorite Mode 4 Track Dual Mono Daily Daily 20 dBFS 12 dBFS 1 kHz 1 kHz Trks amp Outs Trks amp Outs On Mic Only On Mic Only On Mic Only On Mic Only Auto Select Auto Select Knobs Knobs 0 dB 0 dB 0 dB 0 dB 11 0 V 11 0 V Enabled Enabled Play All Play All Tracks A B Tracks A B SOUND Q DEVICES Menu Presets Music Preset CF amp Hard drive New file Off 4 Gb Tracks A B 0 dBFS Tracks C D 0 dBFS Inputs 1 2 Inputs 3 4 Tracks A B Tracks C D Input 1 Input 2 Input 3 Input 4 Mon A B Mon C D End of list 10 Tracks A B Tracks A B Favorite Mode Stereo Daily 12 dBFS 1 kHz Trks amp Outs On Mic Only On Mic Only Auto Select Knobs 0 dB 0 dB 11 0V Enabled Play All Tracks A B 744T User Guide and Technical Information Factor Film Reporter Music Parameter Prese Preset Preset Preset Warning Bell Level 30 dBFS 30 dBFS 30 dBFS 30 dBFS Mic Input 1 Gain Range Normal Normal Normal Normal Mic Input 2 Gain Range Normal Normal Normal Normal Take Counter Clear Mode Never dg daily Never Never User Setups All of the set parameters in the table above can be saved in a file to internal hard drive or to CF card By entering the Get Save Setup Menu the user can save or retrieve parameters to a data file This binary file is name
36. alanced consumer Master Output Bus Ok ring signal R electronic level sleeve signal ground 3 5 mm Q tip signal L mates with 3 5 mm TRS jack Headphone ring signal R sleeve signal ground 5 pin LEMO 1 ground LEMO B series connector pin assignments as viewed Time code 2 SMPTE In on panel mounted connector 3 ASCII in out 4 tuning out 5 time code out AES3id S PDIF Inputs 54 OO center pin signal sleeve ground BNC female unbalanced coaxial connection 75 ohm connectors recommended AES3id S PDIF Outputs center pin signal sleeve ground BNC female unbalanced coaxial connection 75 ohm connectors recommended Word Clock Input and Output OO center pin signal sleeve ground BNC female unbalanced coaxial connection 75 ohm connectors recommended FireWire 1394 1394 center pin signal sleeve ground 6 pin male FireWire cable C Link In Out 1 43 3V 2 Tx output 3 ground 4 Rx input 5 WC in 6 TC in Not a telephone jack Hirose 4 pin DC Input 1 ground 2 ground same as pin 1 3 DC charge 4 DC operate 56 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Power Consumption Power Consumption Variables The 744T draws power from either its on board Li ion battery or from external DC
37. ally the same as Peak metering where the peak level indication will hold for the peak level indication for several seconds Peak hold indicators are useful for metering in applications when an overload condition is unacceptable Peak VU The meter can simultaneously display VU and Peak level information In this mode the perceived loudness VU is displayed on a bar graph and the Peak signal on a dot above the VU With this combination the user gets the best of both VU and Peak metering by seeing both the loudness of the signal and the peaks at the same time Peak VU is the factory default Peak Hold VU Similar to VU Peak mode this mode holds the peak level indication for several seconds before releasing Peak Hold indicators are useful for metering in applications when an overload condition is unacceptable Peak LEDs 1234 O OOnce 1 input peak LEDs 000 000 uM input signal present LEDs oe ey a um headphone peak LED egg boty In addition to the main LED output meter peak LEDs show input peaks track peaks and head phone peaks bal firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Sample Rate and Bit Depth Input Peak The 744T has a peak LED associated with each input These LEDs illuminate when input signal reaches 3 dBFS There is no user adjustment to the Input Peak LEDs Track Peak The 0 dBFS LED on ea
38. amount of pre roll time the 744T will add to the beginning of each file 0 10 sec 48 kHz 0 5 sec 88 2 96 096 kHz 0 3 5 sec 192 kHz SOUND Q DEVICES 744T User Guide and Technical Information Setup Name Setup Description Setup Parameters 10 Rec Dither Selects whether to dither is added to 24 Off bit digital signals while recording 16 bit On 16 bit only files 11 Rec Timer Start Sets a specific start time date for unat lt enter time date gt tended recording Unit must be powered 12 l Rec Timer Stop Set a specific time date to stop record lt enter time date gt ing May be used with or without the Rec Timer Start May be set before the Timer Start time to temporarily stop recording and then resume recording with Timer Start 13 Rec Error Handler Sets the behavior when a hard drive e Stop recording l write error occurs e Keep Recording to New File 14 Input Routing Allows the user to setup their routing e 1 gt A 2 gt B i matrix among all available inputs and e1 gt A 1 gt B tracks There are four preset routings and 1 gt A B 2 gt A B one custom routing available Pressing 1 gt A 2 gt B 3 gt C 4 gt D the input select key repeatedly will cycle 1 2 3 gt A 1 gt B 2 gt C 3 gt D through all preset routings hel ae 2 7B D e3 gt C 4 gt D Primarily accessible from the Input
39. are muted digital signals that appear on them after the record key has been pressed will not be recorded or affect the sample rate of the 744T The 744T will clock itself to the first digital signal presented to it If the 744T detects a digital signal on the BNC inputs and locks to that signal a digital signal applied to the XLR input will be ignored until the first digital signal is removed Input Delay A digital delay is selectable on each channel of the 744T Delay time per input in one microsecond uS steps 1 000 microseconds equals 1 millisecond ms The Multi Function Controller and menu 16 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Input to Track Routing arrows are accelerated The more you press or spin the faster the delay setting will increment or decrement Delay is not set until enter is pressed The amount of delay available is dependent on the sampling frequency in use Sample Frequency Maximum Amount of Delay Available per input 32 44 1 48 48 048 kHz 30 000 uS 88 2 96 96 096 kHz 15 000 uS 176 4 192 kHz 7 500 uS Input delay can be useful for time aligning input signals from differing sources For example digital wireless mics that have a processing delay in their outputs In addition all digital conversion stages have delay Input to Track Routing The 744T uses a simple yet powerful routing scheme The m
40. arger enabled battery is charging 2 blinks No Li ion battery attached 3 blinks High low internal temperature state 4 blinks Battery level error code gt 15 min in slow mode 5 blinks Error charger has been operating for over 8 hours without full charge If the charge LED shows anything but a successful charge the Li ion battery may require replacement Time Code Clock Battery The 744T has an internal NiMH LR6 AA battery to power to the time code generator circuitry and time of day clock This battery is charged simultaneously with the Li ion battery Additionally the AA is charged from the Li ion battery when the unit is powered on With a fully charged AA battery accurate time code is held for two hours after power down The 744T can be powered down and the removeable battery can be removed and replaced without worry of time code jumps or inaccuracy When the NiMH battery is near depletion the time code generator will shut off and the time of day clock will take over and keep running for up to one month 744T maintains accurate time code for 2 hours after power down with a fully charged NiMH battery time code AA battery even with the Li ion and external DC power sources removed a2 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Firmware Firmware Upgrades The 744T uses upgradable EEPROM electrically erasable programmable read on
41. ast is setup menu controlled From the factory the contrast is set to 50 suitable for most viewing conditions Contrast can be increased or decreased The front panel key toggles the LCD and key backlight Backlighting is suitable for low and no light recording LED brightness is continuously adjustable from low to high brightness Hold down the key and turn the Multi Function Controller to change brightness levels All LED s are adjusted In stealth mode setup menu selected the LEDs are toggled on and off with the LCD backlight key Sample Rate and Bit Depth When recording to WAV and BWF files the 744T generates uncompressed PCM audio files at the user selected sample rate and bit depth The 744T LCD calculates available recording time based on the sample rate bit depth number of tracks set for recording and the selected storage media avail able capacity See the Calculating Recording Time later in this guide to estimate record time Sample Rates Sankle Rate SOUND Q DEVICES EI 744T User Guide and Technical Information When a sample rate is selected for recording all tracks are recorded at the selected sample rate Sample rates are selected among common rates from 32 kHz to 192 kHz Additionally non standard sample rates can be applied when the 744T is word clocked from an external source valid clock be tween 32 kHz and 192 kHz When recording off speed sampling rates files will be stamped with the rate neare
42. between you either an individual or a single entity and Sound Devices LLC for the Sound Devices LLC software product identified above which includes computer software embedded software and may include associated media printed materials and online or electronic documentation SOFTWARE PRODUCT By using installing or copying the SOFTWARE PRODUCT you agree to be bound by the terms of this EULA If you do not agree to the terms of this EULA do not use or install the SOFTWARE PRODUCT Software Product License The SOFTWARE PRODUCT is protected by copyright laws and international copyright treaties as well as other intellectual property laws and treaties The SOFTWARE PRODUCT is licensed not sold Grant of license This EULA grants you the following limited non exclusive rights In consideration of payment of the licensee fee Sound Devices LLC as licensor grants to you the licensee a non exclusive right to use this copy of a Sound Devices LLC software program hereinafter the SOFTWARE on a single product and or computer All rights not expressly granted to licensee are reserved to Sound Devices LLC Software ownership As the licensee you own the hardware on which the SOFTWARE is recorded or fixed Sound Devices LLC shall retain full and complete title to the SOFTWARE and all subsequent copies of the SOFTWARE regardless of the media or form on or in which the original copies may exist The license is not a sale of
43. can be routed to any track See Input to Track Routing page 18 Level Meter LEDs Four 19 segment track level meters in dicate level in dBFS Metering ballistics are selected in the setup menu Power Key Press and hold 150 ms to power up the 744T Press and hold 1 second to power down 6 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation 11 Charge LED Indicates the charge status of the on board battery charger LED flashes when external power is connected and the re movable battery is charging illuminates solid when battery is fully charged Power LED Indicates the 744T is powered and avail able for operation LED flashes when the removable battery or external DC is in a low voltage state 12 wa 13 Record Key Press to record The 744T is a record pri ority device pressing this key activates recording and discontinues all other functions except file operations Press ing key during recording can set a cue marker or start a new file as selected in the setup menu ma 14 Stop Pause Key Press and hold this key for 150 ms to stop recording In playback mode a sin gle press pauses playback play pause allowing audio scrubbing with the FF and REW keys Another press of the key enters play stop mode where the FF and REW keys select files for playback from the current directory One more press of the key exits playback mode
44. ch track can also function as a track peak indicator The user can select a signal threshold above which the 0 dB LED will flash Headphone Peak Like the channel peak LEDs the headphone circuit has an indicator for peak overload This LED is useful since headphones can often overload before the recorder overloads Monitoring without a visual indication of headphone clipping may mislead the operator into thinking that the output or return tracks are distorting Tone Oscillator The tone oscillator level and frequency are user selectable Reference level is adjustable over a range of 40 to 0 dBFS Reference tone frequency is adjustable from 100 to 10 000 Hz Standard tone levels vary according to the practices and needs of production and post production but are generally in the 20 to 12 dBFS range The tone oscillator is activated by pressing the front panel key Tone will active only while the tone key is pressed Tone is routed where specified in the setup menu Routing choices include outputs outputs and tracks tracks only or no tone routing disabled When routed to tracks all selected record tracks will receive the tone signal Tone can only be recorded to the head of an audio file To record tone press the tone key and continue to hold it down while starting to record Subse quent presses of the tone key are locked out to prevent tone from inadvertently being recorded LCD Contrast amp Backlight LED Brightness LCD LCD contr
45. cording time involves three factors e track count how many concurrent audio tracks are selected for recording e data rate calculated from the sample rate and bit depth for non compressed audio and by bit rate for data compressed audio Data rate determines how big the data container is for the audio signal see the calculation below for determining PCM audio storage medium capacity typically expressed in GB Uncompressed Recording Time in Track Hours Data Rate bit depth sample rate one track 16 441 16 48 24 48 24 96 24 192 5 05 MB min 5 49 MB min 8 24 MB min 16 5 MB min 33 0 MB min 1 3 30 3 03 2 02 1 01 0 51 e aa aes Gai a ee ale tal Se 1 495 455 8038 152788 60 198 182 121 60 7 30 3 See T ae a ee ie oa The chart above shows recording time available with the 744T Time is expressed in hours per track track hours at the specified data rate supported by the 744T If recording two tracks divide the track hours figure by two Similarly for four track recording divide track hours by four Note that SOUND Q DEVICES 744T User Guide and Technical Information the 744T supports additional sample rate bit depth combinations however only the most common are included below Record Time The chart shows that when recording 24 bit 48 kHz audio to a 40 GB hard drive the maximum amount of recording time available roughly 80 track hours If recording a stereo two track file this yield
46. d 744T SUP and is saved in the SOUNDDEV directory on the selected medium 46 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Setup Menu Setup Menu The setup menu controls a wide range of parameters for the 744T including all audio routing recording settings and time code options The setup menu is a single flat architecture with no sub menus easing navigation Each setup controls a specific parameter with several selections The chart below shows the setup number a description of the control and the menu options available Setup Name 1 Quick Setup Setup Description Allows the user to quickly apply default menu setups and save retrieve user setups to disk or CF Setup Parameters Load Factory Settings restores the factory default settings e Load Film Settings applies typical setups for film production e Load Reporter Settings applies typical setups for voice recording Load Music Settings applies typical setups for music recording e Load User from INHDD applies settings saved by user to hard disk e Load User from CF applies settings saved by user to CF e Save User to INHDD saves present state to file on hard drive e Save User to CF saves present state to file on CF Sets the audio sampling frequency of the 2 _ Rec Sample Rate e 32 kHz 96 kHz 744
47. d Audio When digital audio is compressed using some form of lossy perceptual process such as MPEG2 Layer3 MP3 audio Windows Media encoding WMA ATRAC encoding used in MiniDisc AAC MPEG 4 audio or others it can have a significant reduction in its data rate Compressed audio has enabled the practical distribution of audio over low speed data networks EI firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Accessories Accessories Included Accessories The accessories below are included with the 744T Worldwide 100 240 VAC to 12 VDC 24 W mains power supply Li ion removable rechargeable battery 1500 mAh XL 14 3 5 mm to 1 4 inch jack for headphone output extension XL RJ C Link cable for unit to unit linking Padded man bag Optional Accessories The above accessories are just the start of building a flexible recording kit that can accommodate multiple types of connections Available accessories from Sound Devices include XL WPH power adapter included with unit 100 240 VAC input 12 VDC output it s good to have a spare XL B removable rechargeable Li ion battery 1500 mAh battery it s good to have several spare CS 7 PortaBrace bag with shoulder strap holds 744T and RM accessories mounts onto CS 442 and CS 302 mixer bags XL 1A sold as pair TASF to TA3F cable used to connect the direct outputs of the a Sound Devices 442 mixer t
48. e included Li ion battery for 6 hours prior to initial use Menu Navigation Basics The setup menu provides options for recording routing and control parameters The one layer menu structure allows for very quick navigation and selection of functions To enter the setup menu press the front panel key Once in the setup menu the following conventions are shared for navigating among selections and to select specific parameters enters setup menu ditem lt highlighted menu item V selects highlighted item or parameter T moves up in menu and between menu parameters moves down in menu and between menu parameters X exits the selected menu or menu altogether The CD stop key will exit from any menu and cancel any changes Use it to escape out of the setup menus The right panel Multi Function Controller labeled Select is a convenient control to quickly navi gate among menu items and item options Its push to select function duplicates the check mark in most menus Connecting Audio Sources 1 Connect audio sources either analog or digital to the appropriate input connector 2 When using either input XLR set the appropriate input level mic line or digital with the adjacent slide switch 3 If mic level inputs are used on XLR input 1 or XLR input 2 make certain that phantom power input limiters and high pass filters are activated as required 4 When using inputs 3 or 4 set gain levels in the
49. e low range is from 10 dB to 55 dB The low range is useful for high SPL record ing environments Analog Inputs 3 amp 4 Appearing on Switchcraft TA3 connectors inputs 3 and 4 accept balanced or unbalanced line level signals These inputs have few controls and are typically fed from the output of a mixer or preampli fier SOUND Q DEVICES 15 744T User Guide and Technical Information Gain sensitivity for inputs 3 amp 4 is controlled in the setup menu Gain resolution is in 0 1 dB incre ments Analog Line Input Sensitivity Input level sensitivity for the line level inputs is adjustable in 0 1 dB steps from 6 dBu to 18 dBu While adjusting the input sensitivity the meters will show the relative signal level present on each input on the meters While channel 1 and 2 levels can be controlled by either the menu settings or the front panel pots channels 3 and 4 are adjusted only in the setup menu Signal Presence and Peak Indicator 0000 The four signal presence and peak indicators show audio activity before input to track routing Input signal presence LED s illuminate when a 50 dBFS or greater signal is present Input signal peak LEDs illuminate when signal levels reach 3 dBFS or greater Digital Inputs AES3 The 744T accepts AES3 AES EBU balanced digital at the XLR connectors Digital inputs are in pairs AES3 signals on XLR 1 appear at inputs 1 and 2 AES3 signals input to XLR 2 appear at in pu
50. ececeee ee a 47 Specifications 0 cece eee eee eee 54 Connector Pin Assignments 06 56 Power Consumption Variables 57 Recording Time Calculation 57 Uncompressed Recording Time in Track Hours MP3 Compressed Record Time in Hours ACCESSOFICS cece eee eee eee 59 Menu Navigation Shortcuts 5 60 Warranty and Technical Support 61 Software License ceeeeeeeeeeeees 62 SOUND Q DEVICES 744T User Guide and Technical Information Welcome Thank you for purchasing the 744T The super compact 744T records and plays back audio to and from its internal hard drive or Compact Flash medium making field recording simple and fast It writes and reads uncompressed PCM audio at 16 or 24 bits with sample rates between 32 kHz and 192 kHz Compressed MP3 audio playback and recording are also supported The time code implementation makes the 744T ready for any recording job from over the shoulder to cart based production The 744T implements a no compromise audio path that includes Sound Devices next generation microphone preamplifiers Designed specifically for high bandwidth high bit rate digital recording these preamps set a new standard for frequency response linearity low distortion performance and low noise With documentary and ENG mixing engineers in mind the 744T is very small while still being fea ture rich No other recorder on the ma
51. ecommend you set the 744T to the same sample frequency as the word clock source Loss of the word clock signal in this case will most likely cause a glitch in the file but the file will still be usable To avoid digital loops when using the word clock and digital input signals you must make the 744T the word clock follower of the digital source C Link Multi Unit Linking The proprietary C Link control link connection enables multiple 744T and 722 recorders to be connected for recordings requiring high track counts When linked the 744T and 722 recorders have a master slave relationship When the master recorder is put into record the slave unit will roll as well Multiple units can be daisy chained together to record nearly unlimited tracks The C Link protocol links carries the following data e word clock e time code information 744T only e RS 232 machine transport data J L J S E J Lo a L Digrio P0010 C LINK IN master slave slave unit unit unit To link units 1 Connect multiple units as shown in the illustration above 2 Set all linked recorders to the same sample rate bit depth file format and time code frame rate if used This will ensure that all files generated are compatible 3 If time code is being used set s
52. ed digital output two channel for Output Bus 2 Signal source is menu selected AES3id Master Output Bus Unbalanced digital output two channel for the Master Output Bus Signal source is menu selected and is identical to the Analog Master Output Bus signal Multi Function Controller When in the setup menu the controller scrolls between menu selections push enters selection or enters data In record and playback modes selects headphone monitor source push action user select able a firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Hardware Descriptions Back Panel Descriptions 1 Security Slot Compatible with the Kensington Secu rity Slot specification Useful for secur ing the recorder to a fixed object with a compatible computer lock 2 Compact Flash Slot Insert Compact Flash medium with the label side up Compatible with Type I Type IL and MicroDrives 3 Battery Mount Accepts Sony InfoLithium L or M Series batteries Also accepts batteries conforming to this mount Numerous capacities from 1500 mAh to 6000 mAh are available SOUND Q DEVICES 13 744T User Guide and Technical Information Input Setup and Control The 744T has four inputs and four record tracks Inputs are selectable among analog or digital sourc es Analog inputs 1 and 2 use XLR connectors analog inputs
53. eee S999T 002 MP3 File Finder Navigation Moving from file to file is similar to navigating among files on a computer 1 Enter the file menu by either selecting File ViewFiles file in the setup menu or by pressing the front panel HDD key By default the folder where the last recorded file or played file is located with be the folder first opened The 744T knows this file name by reading a txt file written to each time the unit records or plays audio To move up the hierarchy scroll up to the top of the menu to Press enter or the Multi Function Controller button to go up one menu level From the root menu selecting opens the media select screen Se oe Continuing up the file hierarchy the media menu is viewable Select either internal hard drive or CF if installed and drill down through the directories of that medium to the file required SOUND Q DEVICES 744T User Guide and Technical Information Mediat E aT EE N SEI 250 ME p Larger files and files from Compact Flash take added time to show details this is normal File Directory Screen STIR Cee F LAG sooaToool Hae 10 OPN SU AHU ICH 24b 1 9200A mS00TRGGS WAU 22 40 18 OSHA The file directory screen contains information about the individual audio files contained in the direc tory The left side of the display shows files and folders The top line displays the directory path in the form of media folder name File names are
54. ering this mode and enter cue markers To stop recording in this mode you must disengage the panel lock and hit the stop key ol firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation LCD Display Descriptions Hardware Descriptions Battery Level Indicator Shows voltage level of the removable battery or external power sources External power overrides battery power when present Graphical bar for relative level and numeric indicator for precise voltage measurement File Name Display Shows file name actively being recorded or played back In playback stop mode flashing file name indicates that the fast forward and rewind keys can be used to step through files in the current play back directory Absolute Time A time Display Shows the elapsed time of the file being recorded or played back Flashes in playback pause mode In this mode the FF REW keys will scrub through an open audio file Time amp Date Display Alternating display between the set date and time of the 744T This information is written as the creation date for gener ated audio files Bit Depth Indicator Shows the set record bit depth In play back shows the file bit depth BAT 7 0m SRT TARAI HAU EGEE chee 00 00 25 9 EED gi dT 24b 48k 0 HO Sample Rate Indicator Shows the set record sample rate In playback shows the file sample rate
55. f file generation To ensure that accurate time and file generation dates are written to each file make certain that the time of day clock and calendar are accurately set File time and date and time code are unrelated 1 Enter the TIME DATE Set menu 2 Set the current time and date using the navigation below cies roene o Tine E Daie Set i aaaeei nt i E next selection conta can te 154126 FH turned as well s1504 tdone H ae returns to the previous setting Once set the time and date clock will be kept while the removable rechargeable battery is attached If it is removed the internal AA NiMH time code battery maintains the time of day and date for 8 days or more File Size Maximum The 744T data volumes internal hard drive and CF are formatted and write to FAT32 file structures This structure allows these drives to directly mount in a wide variety of computer platforms includ ing Windows and Mac OS Using the FireWire connection both internal drives internal hard drive and CF appear as external FAT32 volumes Windows XP has a limitation on EAT32 drive formatting XP can format a FAT32 volume to a maximum of 32 GB however it can read FAT32 volumes as large as 2 TB SOUND Q DEVICES EJ 744T User Guide and Technical Information FAT32 has a maximum file size limitation of 4 GB While it is possible to have thousands of files on the 744T medium s the largest any single file may be is 4 GB The
56. ges using its internal re chargeable AA NiMH time code cell After two hours without power the 744T reverts to a less pre cise time of day crystal to maintain the date time of the unit This time code battery is charged from internal or external power whenever the 744T is powered up If the time of day clock is reset during the production day or if the time code mode is changed from 24 hour run to another mode and back the time code generator value will change You must re jam all time code devices to ensure proper synchronization Non linear file based recordings place a single time code stamp in the data header of an AES31 Broadcast WAV file The 744T generates SMPTE time code from this number and extrapolates it based on the time code frame rate for playback All files generated by the 744T have time code numbers begin on the 0 frame or 02 in DF modes If necessary pre roll is dynamically applied to accomplish this This simplifies synchronization in post pro duction Frame Rate A single time code frame rate is selected in the Timecode Framerate menu eee i rame Rate gt 3a ATIF lt E The 744T supports all of the common production time code rates including 23 976 used with Sony high definition video cameras 24 to sync audio to film where no transfer to NTSC video is expected 25 to sync sound to PAL video 29 97 to sync sound to NTSC video shot in non drop frame mode and Panasonic high def
57. he latest documentation Headphone Output e analog tape out 3 5 mm TRS two channel e digital 1 AES3id BNC connection two channel Analog Line Out L R The analog line outputs are active balanced line level signals on Switchcraft TA3M locking connec tors The output level is a nominally 0 dBu at 20 dBFS The level of the line output can be attenu ated in the setup menu by up to 40 dB in 1 dB increments Analog Tape Output The tape output connection is stereo unbalanced consumer output level 10 dBV on a TRS 3 5 mm connector Output attenuation does not affect this output level Digital AES3id Output The unbalanced AES3id output is directly compatible with most S PDIF inputs Attenuation to the Master Output Bus affects both analog and digital signals Output Bus 2 Just as with the Master Output Bus Output Bus 2 can be assigned signal sources from inputs or tracks Sources assigned to Output Bus 2 are exclusive and do not affect the assignments to the Mas ter Output Bus or headphone assignments The same signal sources available for the Master Output Bus are available for Output Bus 2 see chart above Digital AES3id Output 2 Output Bus 2 appears solely on the AES3id BNC output connector There is no analog output con nections for Output Bus 2 The unbalanced AES3id output is directly compatible with most S PDIF inputs The maximum output level is 0 dBFS and can be attenuated in the setup menu in 1 dB incre ments by 40 dB
58. ical devices the higher the ambient temperature the shorter the device s operational life Therefore take care to observe the specified temperature rating There is also a risk from sudden temperature changes which can create condensation inside the drive This condensation can lead to the drive s read write heads adhering to the disk surfaces which will in turn stop the hard disk from rotating Condensation tends to occur when the tempera ture inside the drive suddenly falls for example just after the unit is moved to a new location or after operation is stopped in a cold environment Sudden changes in temperature or air pressure can cause disk surface material to evaporate which can also cause the head to adhere to the disk surface This can happen when a hard disk drive is left unused for a long period of time Drive Replacement The internal hard drive can be removed and replaced if the device fails or if a different capacity drive is needed The internal hard drive is intended to be a swappable deliverable medium Its multi pin connector is not rated for repeated insertion and removal cycles and may be prone to breakage with repeated cycling In typical service conditions Sound Devices recommends hard drive replacement once every three years The hard drive is mounted to the bottom side of the recorder s chassis and is screwdriver acces sible The drive is suspended in the unit with a shock isolating membrane and
59. icroprocessor controlled matrix allows any input to be routed to any track Multiple inputs can be routed to a single track to create mono mixed recordings The 4 by 4 blue LED matrix makes it easy to check your current routing at a glance A solid blue LED indicates an input is assigned to a record track 1234 A any combination of B the four inputs can c be routed to any of the four tracks races HDD TRACKS Regardless of which tracks are assigned for recording monophonic file numbering always starts with 1 i e if only track D is selected for recording in a monophonic WAV file the resulting filename will have a _1 suffix not _4 Polyphonic files will play back the recorded track starting from track A i e if a poly file is recorded on tracks B and D playback will occur on tracks A and B Use the Input Routing selection in the menu to enter input select mode Alternatively press the input key to cycle through the six preset input routing combinations The last selection in the list is CustomRoute Press the EDIT soft key to enter custom routing mode Custom routing allows any input to be assigned to any record track When assigning customer rout ing active input and track combination are displayed in white text The four inputs are shown on the left the four record tracks are shown on the right To assign custom input routing 1 Press the input key until Input Routing is displayed on the LCD di
60. igh sample rate audio The 744T includes a drive speed test to measure the throughput speed of CF medium Measured numbers greater than 3000 KB s can reliably write 24 96 x 4 channels Not all CF medium can sustain write speeds for reliable 192 kHz recording Use the speed test utility to make certain that installed medium can support the selected number of tracks at 192 kHz Drive Repair The same drive repair utilities are available for the CF as the internal hard drive Qualified CF Cards Several CF mediums have been tested and approved for use in the 7 Series including Lexar Media SanDisk and Kingston Technology cards in capacities ranging from 128 MB to 4 GB Small capacity cards may not format as FAT32 and may not be useable It is not feasible for Sound Devices to test all available CF cards for compatibility or maximum throughput with the 744T Use the CF transfer speed test to verify that an installed card can support the needed read write speed File Naming Numbering Files generated by the 744T are named using a syntax made up of four parts scene number take number mono track designator if mono file is selected and extension 300110001 1 BWE Scene ka tonb extension number number file designator Scene Name Number Scene names are made with alphanumeric characters including _ and and can be any length between zero 0 and nine 9 characters in length Scene numbers are helpful to
61. in the 744T battery is fully charged or connect to external DC 3 Connect the 744T to the host computer with a FireWire cable 4 The 744T will enter FireWire transfer indicated by COMPUTERCONNECTION on the LCD display All functions of the 744T are stopped while the 744T is connected to a computer through FireWire 5 Navigate the drives on the computer and copy all needed audio files to the computer To avoid possible directory corruption on the 744T internal media do not interrupt the connection pro cess and always properly dismount the drives from the operating system On Mac OS platforms drag the drive icons to the trash On Windows platforms use the Disconnect External Media icon in the system tray SOUND Q DEVICES 5 744T User Guide and Technical Information Front Panel Descriptions All 744T settings can be accessed and monitored through the front panel LCD and navigation keys This allows the unit to be placed in a production bag along with field mixers and wireless transmit ters and receivers ec REED SEDE EHF Og SER pae 15 35 11 23 EERE 24 ho 4 E 00 00 00 00 2 Gap 1 Digital Input LEDs Indicates the presence of digital signal on the respective input When flashing indicates that digital input is selected but no valid digital clock signal is pres ent Input 1 Gain Controls the analog gain input trim of the channel 1 input Normal mic input range is from
62. ine level mode phantom power will not activate from the shortcut keys and must be activated from the menus Input Limiters mic level only Microphone inputs 1 and 2 each have a limiter circuit designed to prevent input overload In nor mal operation with proper gain settings the limiters should rarely engage When activated these limiters will prevent unusually high input signal levels from clipping the analog input stage of the preamp The front panel LIM LED 4 LM shows that the limiter is engaged Limiter activity is indicated by additional front panel LEDs one for each input channel OOu The input limiters are active only with mic level inputs The limiters are engaged by factory default When limiters are engaged audio on channels 1 and 2 is limited to 6 dBFS Microphone Level Control Microphone gain is controlled by the front panel recessed knobs The gain control adjusts an analog gain stage and is identical to the input trim on a mixing console or stand alone microphone pream plifier Line Level Gain Control When in line level position the gain for inputs 1 and 2 is controlled by the front panel recessed knobs or by a menu sensitivity setting When set for front panel control the user menu selection for input 1 and 2 line input sensitivity are lined out and not accessible Input Linking mic and line level Analog inputs 1 and 2 can be linked as a stereo pair When linked the channel 1 front panel potenti
63. ing ccee eee e eee eee eee eee 21 Output Meter Meter Ballistics Peak LEDs Tone Oscillator LCD Contrast amp Backlight LED Brightness Sample Rate and Bit Depth 065 23 Sample Rates Bit Depths Word Clock ccceeee cece nrnna 24 Clock Master Clock Slave C Link Multi Unit Linking Time Codevi ie e i en cen nadine eae 26 Frame Rate Time Code Modes Jam Menu User Bits NTSC Standard Def Video Production Audio File Formats asnasan 29 WAV BWF MP3 MPEG Layer 3 Recording and Playback 0 eeeeeeaee 30 Recording Playback AutoPlay Storage Medium Internal Drive 32 Formatting Drive Repair Drive Type Drive Failure Drive Replacement Storage Medium Compact Flash 34 When to Use CF Formatting Testing Drive Repair Qualified CF Cards File Naming Numbering 2 0e008 35 Scene Name Number File Management and Copying 5 37 File Finder Navigation File Directory Screen Setting Clearing Flag Bits Automatic Flag Clearing Folders File Time and Date File Size Maximum File Copying Between Internal Drives File Transfer FireWire Powering 1 cece cette eee eee eee 41 Lithium lon Rechargeable Battery External Powering and Battery Charging Time Code Clock Battery Firmware Upgrades ccceeeeeeeeeaee 42 Version Information Upgrade Process Setup Menu Presets eeeeeeeeees 44 Built In Presets User Setups Setup Menu 2c
64. ini tion cameras e 29 97DF to sync sound to NTSC video shot in drop frame mode 26 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Time Code e 30 to sync sound to film where transfer to NTSC video is expected e 30DF to sync sound to film for transfer to NTSC video in drop frame mode 29 97 fps Time Code Modes The 744T includes the following time code modes Off The time code generator is disabled The front panel time code display is blank Free Run The internal time code generator runs continuously without regard to the record mode Any time code value can be used as the start value by jamming value in the jam menu Record Run The time code generator runs only when the 744T is recording Time code in this mode defaults to 00 00 00 00 at power up When switching to record run from another mode the internal generator will stop at the last number generated A user defined value can be jammed into the internal genera tor from the jam menu Free Run Jam Once The onboard time code generator will re jam from external time code whenever a valid running time code signal is connected to the TC input Similar to free run mode the generator runs continu ously without regard to record mode For a jam to occur the time code signal must be disconnected and re connected to the time code input Free run Jam Once is useful when using the recorder as a s
65. installation instructions Microsoft Windows is registered trademarks of Microsoft Corporation Macintosh is a registered trademark of Apple Computer Other product and company names mentioned herein may be the trademarks of their respective owners The sound waves logo is a registered trademark of Sound Devices LLC 2 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Quick Start Guide Quick Start Guide The 744T is an extremely powerful and flexible portable audio recorder Before recording familiarity with the product is essential Several settings should be verified or set based on individual recording needs Powering the Unit 1 Apply power to the unit by attaching the included removable rechargeable Li ion lithium ion bat tery to the back panel battery mount The metal tabs on the mount line up with the electrical contacts on the battery From the factory the battery may not have a charge so external DC may be needed for initial operation and charging Connect the included AC to DC power adapter to the DC input plug to power and charge the battery 2 Press and hold the power key 150 ms to power up the unit To power down the unit the power button must be held for one second If this is the first time the recorder has been powered or if it has been without a battery for an ex tended period the date and time may need to be set Charge th
66. io to film where no transfer to cameras NTSC video is expected e 25 to sync sound to PAL video 29 97 to sync sound to NTSC video shot in non drop frame mode 29 97DF to sync sound to NTSC video shot in drop frame mode 30 to sync sound to film where transfer to NTSC video is expected e 30DF to sync sound to film for transfer to NTSC video in drop frame mode 44 Time Code Mode Sets the mode for the time code genera tor e Off time code not active recorded or output e Free Run time code is initialized from the jam menu and then runs continuously regardless of record mode Free Run Jam Once time code is initialized from an external source and updates itself to the external source when reconnected Record Run time code is initially set from the jam value item in the jam menu Time code generation runs only during recording generating continuous time code from file to file e 24 Hr Run time code is initialized from the system clock on startup and enters free run mode Time code is updated if the time of day clock is adjusted _ Ext TC applies external time code to the recorder directly The internal time code generator has no effect e Ext TC cont applies external time code to the recorder internal generator continues to run if time code signal is lost Useful for time code transmission over RF Ext TC Auto Record app
67. ion then repeat until stopped by the user SOUND Q DEVICES a 744T User Guide and Technical Information Storage Medium Internal Drive The 744T s internal hard disk drive is the 744T s primary storage medium The large capacity and fast data read write speeds of hard drives are a perfect choice when long form high data rate recording is performed This is a good balance of speed reliability noise performance and current draw Higher speed drives may be used with the 744T however they will not significantly improve performance They will slightly increase transfer throughput with the penalty of increased current draw and reduced battery run time Formatting The drive installed in the 744T is formatted at the factory as a single partition FAT32 volume If a drive with multiple partitions is installed the 744T will only see the primary partion The 744T can only address one partition As a matter of routine maintenance periodic re formatting of the 744T hard drive is recommended Formatting the hard drive rebuilds the FAT file allocation table and erases any audio or other data files present on the medium This reduces possibility of directory corruption Be certain that all files on the 744T drive have been backed up to another media before formatting Once formatted all data on the drive will be erased To format the 744T internal hard drive 1 Ensure that all data on the hard drive has been copied or is no lo
68. irmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Word Clock The 744T can function as an A D converter and can be used as the master word clock source Slaved devices will derive their word clock timing from either their digital audio inputs S PDIF or AES EBU or through their word clock input connection As a word clock master the 744T generates word clock whether or not audio is sent Clock Slave When using an external digital preamplifier connected to the 744T inputs the recorder can derive its clock signal from the AES S PDIF stream it will slave to the external device or the external device can be slaved from the 744T if the external device has word clock input If for example you are us ing a wireless receiver with a digital output it may not have an external word clock input and will be the word clock master If digital audio is connected to the 744T from more than one digital device you must word clock the sources to the same clock otherwise variations between the sources will render their signals unus able If the 744T is slaved to external word clock be certain that the source is stable Loss of the word clock signal during recording can cause the 744T to revert back to its internally set sampling frequency If this occurs the portion of the file recorded after the loss of word clock may not play back at the proper speed For reliability we r
69. is attached to the main circuit board via a flex board Since the unit s high density circuitry and tight construction require specific electronics knowledge Sound Devices strongly recommends drive replacement be performed by a qualified technician using proper ESD precautions Drive replacement done by a qualified technician has no warranty implications SOUND Q DEVICES EI 744T User Guide and Technical Information 744T with bottom panel removed showing hard drive mounting location The internal hard drive is not intended as a swappable exchange medium The header connector is not rated for repeated removal and insertion Only qualified service technician using proper ESD precautions should perform drive replacement Storage Medium Compact Flash Compact Flash CF is a practical portable storage medium for audio recording Its speed reliability and price continue to evolve to the benefit of portable recorders The 744T can write to and read from CF as either its sole recording medium or simultaneously with the internal hard drive When to Use CF The key benefits of Compact Flash include wider temperature range capability than hard drives increased shock immunity versus hard drives convenient media insertion and removal established workflow and ubiquitous card readers and transfer tools Formatting Upon insertion of an unformatted or non FAT32 formatted CF medium the 744T will prompt the user to format
70. ke numbers can be overridden and a new take number can be set in the setup menu If the 744T detects a file with a duplicate name in the destination folder a letter suffix starting with A is added to the file name before the extension Note that take number han dling can be selected to reset if set in the setup menu see File Management and Copying Co BEE T COO f g F a ae E HGS QJ To change take numbers 1 Enter the user menu and navigate to the Take Name Number option 2 Use the REW lt and FF gt soft keys to move among decimal places and to jump to the single alpha numeric take spacer character Use the PLAY key to reset the take number to 1 Characters are entered from left to right and deleted from right to left 3 The Multi Function Controller or the soft keys are used to choose characters numbers Press the Con troller or hit the soft check key to save the character and move to the next position From the user menu the action for take resetting is controlled from the following options e Never take numbers do not reset e When scene is changed take resets when scene name is changed e When daily folder is changed takes reset on new day e Either scene or daily takes reset on either change EJ firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation File Management Mono Track Name Designators When rec
71. lave although one of the External TC modes may be more appropriate for slaved operation 24 Hour Run Identical to free run with the exception that the generator will automatically jam itself from the time of day clock on power up The generator will also re jam if the time of day clock is reset Once jammed the generator will run continuously from the time code clock not the time of day clock Ext TC The internal time code generator follows an external time code signal appearing at the time code input Ext TC cont The internal time code generator follows an external time code signal appearing at the time code in put If the external time code is removed the internal generator continues to run to preserve continu ous time code Useful for time code transmission over RF where RF hits may interrupt time code Ext TC Auto Record The internal time code generator follows the external time code signal appearing at the time code input When external code advances the 744T enters record mode automatically When the external code is stopped the 744T generator pauses and recording is stopped This is appropriate when dual system sound is used with video cameras set for Rec Run time code The video camera will function as master time code and the recorder transport will follow the video camera transport Ext TC cont Auto Record The internal time code generator follows the external time code signal appearing at the time code input
72. lave units to External time code mode so that they will follow the master recorder s time code generator SOUND Q DEVICES 25 744T User Guide and Technical Information 4 Set scene names on each of the units for easy identification in post production Take numbers should be set to the same on all linked recorders if take numbers are reset before recording There is no file name synchronization with multiple unit linking When linked record start and stop on slave units will not affect units above in the linked chain This makes it possible for units to get out of synchronization if a unit other than the master is set to record or stop Using the master unit will assure that all machines begin and end recording together The C Link jack is a proprietary RS 232 port Under no circumstances should analog or digi warnine tal telephone lines be connected to either jack Serious damage to the recorder could result Time Code The 744T uses time code circuitry developed by Ambient Recording GmbH a leading developer of stable portable time code products visit Ambient on the web at www ambientaudio com Clock stability and continuity are critical aspects of the 744T time code implementation Its temperature controlled compensated crystal oscillator ensures rock solid TC stability and accuracy lt 0 2 ppm when tuned with an Ambient Master Controller The 744T holds accurate time code for up 2 hours between battery chan
73. lies external time code to the recorder Unit enters Record when time code runs and stops when time code stops e Ext TC cont Auto Record applies external time code to the recorder internal generator continues to run if time code signal is lost Unit enters Record when time code runs and stops when time code stops 45 Time Code User Bits Sets the time code user bits generated by the 744T mm month dd day of week yy year _ tt take number uu user defined e Not Used user bits are not set or output e mm dd yy tt e dd mm yy tt e uu uu tt tt user bits are set to 4 user defin able digits with 4 take digits uu uu uu uu tt tt tt tt user bits are set to the take counter for all 8 digits E mm dd yy uu e dd mm yy uu EJ firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Setup Menu Setup Name Setup Description Setup Parameters 46 Time Code Jam Menu Allows the user to jam or edit the internal e Jam RX TC jams the internal generator to time code generator and user bits Also received external code accessible by pressing HDD and Menu Jam Zeros resets the internal generator to _ keys simultaneously zero _ e Jam Value sets the internal generator to the value set in edit value Edit Value allows to user to ente
74. listed in the order they were recorded File types not native to the 744T do not show up in the file directory view although folders without audio data will be viewable File detail is shown at the right side of the display The center divider points to the file selected for information viewing Information shown includes e file creation date file archive bit status checked means the file archive bit is set clear means the file archive bit is cleared e file creation time file size e number of tracks bit depth sample rate e beginning BEG time code stamp of the file for BWF files or the length LEN of MP3 files e There is additional information available for BWF files Pressing the Multi Function Controller will cycle through the beginning time code stamp BEG file length LEN and user bits USR The file directories always exit to the main screen whether entered via the menus or the HDD key Setting Clearing Flag Bits Pressing the tone key in the file directory display opens the Set or Clear Flag Bit screen The options for setting or clearing flag bits include set or clear the selected file set or clear all the files in the current folder or set or clear all files on the volume BALL IH FOLDER CURRENT FILE CLEAR Flag Bitis Wii OW META All files recorded by the 744T have their archive bit set to on EJ firmware v 1 24 Features and specifications are subject to change Visit w
75. ly memory to hold the unit s operating system software or firmware Firmware is the source code which controls all aspects of the device including menu options signal routing signal processing LED s button and switches and data ports Version Information During manufacturing the unit s hardware revision number and serial number are burned into a protected area of the EEPROM and are not changeable These numbers can be viewed from the Info Version selection of the setup menu Info Version also shows the firmware version of the recorder The 744T firmware version and unit serial numbers are written to the data chunk of every WAV and BWE audio file generated by the 744T HOR Th SUFTWARE WER 1 06 SERIAL 4581 842hohG4 Upgrade Process From time to time Sound Devices may issue revisions new versions of firmware for the 744T Firm ware is user upgradeable To upgrade firmware follow the steps below 1 Download the firmware file from the Sound Devices web site or obtain it on disk 2 Transfer the firmware file it will be named versiton_number prg to the 744T internal hard drive via FireWire or onto a CF card If there are multiple firmware files on the media the 744T will indicate the firmware file listed to apply To prevent confusion ensure that there is only one firmware file available on either 744T media 3 Enter the firmware upgrade menu You will be prompted to search for the firmware file If a valid fir
76. match audio with the corresponding scene in a production Scene names can also be used to identify other items in cluding recording date artist name or any other descriptor as required Scene names are user selected in the setup menu and do not change until changed by the user SOUND Q DEVICES EI 744T User Guide and Technical Information gt QTMOS Bag E maa Q amp Q To change scene numbers 1 Enter the user menu and navigate to the Scene Name Number option 2 Use the REW lt and FF gt soft keys to move among characters Use the PLAY key to delete characters Characters are entered from left to right and deleted from right to left 3 Use the Multi Function Controller or the soft key arrows to choose characters Press the Controller or hit the fast forward key to save the character and move to the next position 4 To save the scene name press the soft check key or the Controller without selecting a character After the ninth character is entered the scene name is automatically saved If all characters are removed no scene name will be written to files If Scene Folder is selected for file management all takes will be placed in the SOUNDDEV folder Take Numbers Take numbers are integers between 1 and 32000 with or without preceding zeros which increase by one each time a new file is recorded Take numbers can be set with or without a take separator such as the character or T Ta
77. mple rate maximum A D converters on socketed field upgradeable daughter board A D Dynamic Range 114 dB A weighted bandwidth 110 dB 20 Hz 22 kHz bandwidth D A Dynamic Range 112 dB A weighted bandwidth 108 dB 20 Hz 22 kHz bandwidth Metering Analog Input 76 segment 4 x 19 sunlight viewable selectable peak VU or peak with or without peak hold with VU ballistics variable brightness all measurements at Fs 96 kHz 24 bit unless noted Frequency Response Mic or Line 10 Hz 40 kHz 0 1 0 5 dB gain controls centered Equivalent Input Noise Mic 133 dBu max 135 dBV 50 ohm source A weighted filter Mic 131 dBu max 133 dBV 50 ohm source 20 Hz 20 kHz BW flat filter gain fully up Mic 130 dBu max 132 dBV 150 ohm source A weighted filter Mic 128 dBu max 130 dBV 150 ohm source 20 Hz 20 kHz BW flat filter gain fully up THD Noise Mic 0 004 max 1 kHz 22 Hz 22 kHz BW gain control down 15 dBu input Line 0 004 max 1 kHz 22 Hz 22 kHz BW gain control down 16 dBu input Gain Mic normal gain mode 25 70 dB input dBu to 20 dBFS Mic low gain mode 10 55 dB Line 6 18 dB 0 1 dB increments Input Impedance Mic XLR 4k ohm Line XLR and TA3 20k ohm Input Clipping Level Mic input 5 dBu minimum normal gain mode gain control fully down Mic input 10 dBu minimum low gain mode gain control fully down Line inpu
78. mware file is present on either the internal hard drive or CF the recorder will prompt if the path is the proper file to use Press the Multi Function Controller or the tone key to say yes The 744T will begin firmware upgrade and validation Progress is indicated with a bar graph for a Programming file 4 When the upgrade and verify process is complete power cycle the 744T On power up the LCD will turn solid black and the green LED next to the FireWire port will blink 20 times When the update se quence is complete the 744T will reboot once again 5 Verify the firmware version using the Info Software menu 6 Reset the time of day clock time code generator and verify any recording parameters Firmware upgrades are designed to preserve all user menu settings However save a snapshot of the set tings to a setup file on the hard drive or CF Once a firmware upgrade is complete restore settings from this file if necessary Some firmware updates may make changes to user setups verify all user setups after an upgrade SOUND Q DEVICES 43 744T User Guide and Technical Information Setup Menu Presets Presets are useful shortcuts to speed setting the numerous parameters available in the setup menu The 744T has four built in presets and unlimited user presets Built In Presets The 744T is shipped from the factory with the factory preset applied Its settings are listed below Three additional presets film reporter
79. nger needed Press the Menu key 2 3 Use the Multi Function Controller to scroll to In HDD CErase 4 Press the controller button to begin formatting 5 Press the controller once more to confirm the operation Formatting the 744T hard drive can take up to 30 seconds When the format is completed the 744T will create a fresh menu hierarchy including the daily folder if selected Once you exit back to the main screen the 744T is ready for recording Drive Repair Included in the software for the 744T is a basic drive repair utility The utility is similar to Windows Scandisk and will check for file system integrity recover lost cluster chains fix or recover dam aged file allocation tables FAT This utility should be run after improper media removal or in the event of a write error during recording When selected from the setup menu the repair utility will scan the drive for problems report the number of errors and correct the errors Drive Type The 744T ships with a 2 5 inch ATA 5 interface 5400 RPM hard drive Sound Devices has chosen the specific mechanism for maximum vibration and shock resistance Most 2 5 inch drives conforming to the ATA specification can be substituted for the factory hard drive When choosing a substitute hard drive note that higher RPM hard drives draw more current reducing battery run time 32 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com fo
80. nted by a digital word of 2416 65 536 possible values 24 bit audio has a word length of 2424 16 7 million possible values per sample The 744T has 24 bit analog to digital converters To obtain 16 bit recording the 744T can be set to dither 24 bit digital signals to 16 bit The 744T uses a proprietary pseudo random dither routine for accurate bit rate reduction Dither can be defeated in the user menu Without dither 24 bit audio is truncated to 16 bit meaning the least significant 8 bits are discarded Once a file is recorded its sample rate and bit depth can not be changed in the recorder The 744T can not perform sample rate conversion or bit depth changes File conversion must be done in another environ ment such as an audio workstation Alternatively a real time analog transfer is often performed instead of sample rate conversion Word Clock Stable word clock is fundamental to a high quality audio signal The 744T uses a rock stable time code crystal to generate its internal word clock frequencies The 744T can clock external devices from its word clock and accept external clock sources for recording The 744T disregards external clock both AES and word clock during playback Clock Master When sending digital audio to several devices one unit is designated as the word clock master and the others should be slaves Generally the device with the analog to digital converter is designated as the word clock master 24 f
81. ntil lt done gt is selected Resetting the time re jams the inter nal time code generator to the set time Setting the internal clock during a production day will require time code devices to be re jammed 55 LCD Contrast l Sets the contrast level of the LCD display l 0 100 In normal operation should only need to be set once 56 Meter Ballistics Selects among five different meter bal e VU only e Peak VU listics settings e Peak only e Peak hold VU e Peak hold only 57 Meter Peak Threshold User set level in dBFS where track peak 0 to 20 dBFS 1 dB increments LED s illuminate 0 LED doubles as track peak indicator 58 Meter Stealth Mode _ Enables LEDs to toggle on and off with Off the LCD backlight key On SOUND Q DEVICES 744T User Guide and Technical Information Setup Name Setup Description Setup Parameters 59 HP Encoder Switch Function Selects the functionality of the Multi e Disabled Function Controller s button when in push makes no change to the headphone record and playback matrix Selects Favorite Mode in record and playback modes push will change the headphone source immediately to the favorite selected in HP Favorite Mode e Headphones to C D Meters momentarily shows headphone level on tracks C amp D LED meters e Playback Monitor Drive Select Selects the media source for file playback and record monitoring
82. o the channel 3 4 analog line level inputs XL 2 sold as pair TASF to XLR M cable used for output connection from the master analog output XL 2F sold as pair XLR F to TA3F cable used for input connection to line inputs 3 and 4 XL BNC BNC to BNC cable to connect word clock from external sources to the 744T for synchronizing the 744T also used to sync external devices from the word clock of the 744T XL LB 5 pin LEMO to BNC used to jam video cameras from the 744T XL LL 5 pin LEMO to 5 pin LEMO used to connect the 744T time code circuit to Ambient time code sync boxes slates and controllers or to jam one 744T to another 744T additionally used to jam Aaton cameras from the 744T XL LX 5 pin LEMO to XLR M and XLR F used to connect the time code output to SMTPE time code inputs and outputs SOUND Q DEVICES EJ 744T User Guide and Technical Information Menu Navigation Shortcuts To speed navigation the 744T has numerous navigation shortcuts The following is a complete list ap acts as an escape key and exits from most menus and functions immediately REC drops all functions except file copy and begins recording ED O press simultaneously to enter the time code jam menu O O press backlight then tone to lock all front panel buttons except for Record Stop and Play FF and Rev are available in playback mode Use backlight and tone again to unlock the panel press repeatedly to cycle through inp
83. of playback post record track Highlighted media is source of monitor program Monitor Bm This signal is sent to both sides of the headphones When not in playback headphones have no Monitor Cm program Monitor Dm Inputs 1 2 MS Stereo monitoring of discrete M mid and S side input pairs Highlighted media is source of moni Inputs 3 4 MS tor program Tracks A B MS Stereo monitoring of discrete M mid and S side track pairs Highlighted media is source of moni Tracks C D MS tor program Upon playback will function as MS track monitor Monitor A B MSm Stereo monitoring of playback post record discrete M mid and S side track pairs Highlighted Monitor C D MSm media is source of monitor program When not in playback headphones have no program When tracks A B C or D are assigned to headphones audio assigned to the tracks appear in head phones during recording whereas the recorded track audio appear in headphones during playback To set the available headphone source options for headphone monitoring enter the HP Monitor modes menu Once you enter the Monitor Modes menu you will immediately be in slot 1 Rotate the Multi Function Controller to select the source you wish to appear first in your Headphone moni tor list Once the chosen source appears press the Multi Function Controller or the soft key ENTER tone key to move to the next slot Continue down the list to select the source for each slot in the list Once
84. ording monophonic Broadcast WAV files each track is recorded in a separate data file To identify each track each file is identified by an underscore and track number suffix The file of the first track recorded has _1 appended to it Numbers don t necessarily correspond to specific tracks only to the number of tracks recorded For instance if track D is the only track recorded it s designa tor will still be _1 File Management and Copying The 744T like a computer writes its audio recordings to a file system The 7 Series recorders use a FAT32 file system The 744T formats its internal hard drive and Compact Flash medium as single volumes named 7441 All files generated by the 744T are placed in the folder directory named SOUNDDEV The 744T does not write files to the root of the volume If Daily Folders or Scene folders are selected the 744T will generate a new folder named by date or scene name each time the calen dar day changes or the scene name changes Otherwise all recorded files will be stored directly in the SOUNDDEV directory An example hierarchical view of files generated by the 744T is below Notice the volume name SOUNDDEYV folder daily folders and the files contained within the folders E 7447 SOUNDDEV YO4MQ6D01 50Q1T0001 WAV 5001T0002 WAV 5001T0003 WAV f YO4Me6D02 5001T0004 WAV 5001T0005 WAV YO4Me6D02 5002T0001 WAV 5002T0002 WAV ee S999T0001 MP3
85. ore information on selecting and highlighting recording medium SOUND Q DEVICES 19 744T User Guide and Technical Information Setting Headphone Source Options In addition to the 10 preset headphone routings a total of 20 available slots can be filled in a user defined order Headphone monitoring sources can be set from various combinations of inputs tracks and post record tracks including stereo and MS decoding The order of headphone selections is user selectable Available audio sources for headphone monitoring include HP Sources Description Inputs 1 2 Stereo monitoring of input pairs Inputs 1 and 3 are assigned to left headphone output inputs 2 and Inputs 3 4 4 are assigned to right headphone output Tracks A B Stereo monitoring of track pairs Tracks 1 and 3 are assigned to left headphone output tracks 2 and Tracks C D 4 are assigned to right headphone output Upon playback will play as track monitor Monitor A B Stereo monitoring of playback post record track pairs Tracks 1 and 3 are assigned to left head Monitor C D phone output tracks 2 and 4 are assigned to right headphone output Input 1 Solo monitoring of selected input This signal is sent to both sides of the headphones Input 2 Input 3 Input 4 Track A Solo monitoring of selected track This signal is sent to both sides of the headphones Upon play Track B back will play as track monitor Track C Track D Monitor Am Solo monitoring
86. ources independently enabling the 744T to feed mul tiple sources with unique two channel program The chart below shows the audio sources available for the Master Output Bus and for Output Bus 2 The audio sources for each output bus are selected in the setup menu Master Output Bus and Output Bus 2 Sources Description Stereo input pairs Input 1 and 3 is assigned to left output input 2 and 4 is assigned to right Inputs 1 2 output Inputs 3 4 When inputs are selected as the source for the outputs the state of recording or playback activity has no effect on the output signal This allow uninterrupted audio at the outputs Tracks A B Stereo track pairs Track 1 and 3 are assigned to the left output track 2 and 4 is assigned to Tracks C D right output On playback will play as track monitor Stereo monitoring of playback post record track pairs Highlighted media is source of monitor Monitor A B program Track 1 and 3 is assigned to left output track 2 and 4 is assigned to right output When Monitor C D not playing or recording there is no output There is significant delay in the monitor signal while recording due to the record buffer topology Master Output Bus Audio signals routed to the Master Output Bus are sent to three output connections e analog line out 2 x TA3 two channel 18 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for t
87. oveable delivery medium To connect the 744T for FireWire transfer 1 Stop all playback and recording activity 2 Interconnect the 744T to the host computer 3 The 744T will now show COMPUTER CONNECTION on the LCD While audio will still pass through the 744T no recording or playback is possible 4 Navigate the drives on the computer and copy all needed audio to local storage To avoid possible directory corruption on the 744T internal media always properly dismount the drives from the operating system On Mac platforms drag the drive icons to the trash On Win dows platforms use the Disconnect External Media icon in the system tray Powering The 744T is powered from either a removable Li ion rechargeable battery or external DC power The included removable 7 2 V Li ion cell can be used as either primary or backup power The 744T automatically chooses the power source based on the voltage level of the external power supply The transition between external and removable battery powering is seamless and has no affect on record ing or playback operation One of the hallmarks of Sound Devices equipment is their power efficiency During typical opera tion the 744T will run for approximately two hours from the included a 1500 mAh Li ion battery Lithium lon Rechargeable Battery The 744T is powered from Sony compatible L or M type Li ion rechargeable batteries Numerous power capacities are available in these batter
88. pan e Linked 1 2 and MS Inputs are linked channel 1 pot controls level channel 2 pot controls pan and are decoded for MS stereo 27 Line Input 1 2 Gain Control _ When inputs 1 and 2 are in LINE input Use front panel knobs mode selects whether the gain setting is e Use sensitivity settings controlled by the front panel knobs or by the menu sensitivity settings below 28 Line Input 1 Gain Adjusts the input sensitivity in 0 1 dB Meters show a pre fader level of the input sig 29 Line Input 2 Gain steps 6 dB and 18 dB nal of all four inputs on their respective meters 30 Line Input 3 Gain to aid in the adjustment 31 LIne Input 4 Gain 48 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Setup Menu Setup Name Setup Description Setup Parameters 32 Input 1 Delay Sets a digital delay for each input Can O usec to 30 000 usec up to 48 048 kHz Fs 33 Input 2 Delay be used to compensate for delay in vari 0 usec to 15 000 usec up to 96 096 kHz Fs 34 Input 3 Delay ous digital wireless microphone units or 0 usec to 7 500 usec up to 192 kHz Fs 35 Input 4 Delay digital processors i 36 File Marker Mode Enables the user to set cue points on e Markers disabled the fly while recording by pressing the No cue marks are set record key e New Cue Cue markers will be set within one contig
89. r a free _ form number to initialize the time code _ Edit U Bit allows the user to edit allowed user bit numbers 47 Output 1 L R Source Selects the signal source for the Master inputs 1 2 Output Bus TA3 outputs tape outputs inputs 3 4 and digital 1 outputs e tracks A B tracks C D monitor A B post record monitor e monitor C D post record monitor 48 Output 1 L R Attenuation Selects the attenuation level of signal selectable from 0 to 40 dBFS sent to the Master Output Bus 49 Output 2 L R Source Selects the signal source for output bus 2 inputs 1 2 sent to digital output bus 2 e inputs 3 4 e tracks A B etracksC D e monitor A B post record monitor e monitor C D post record monitor 50 Output 2 L R Attenuation Selects the attenuation level of the signal selectable from 0 to 40 dBFS output to bus 2 51 Play AutoPlay Mode Allows user to play file s consecutively Disabled from selected directory one time through Play all or continuously Repeat one Great for playing an MP3 collection lt Repeatall during down time 52 Time Date 12 24 Hr Selects between 12 hour and 24 hour 2 e412 hr time 9 24 hr 53 Time Date Date Format Selects the date syntax of the recorder e mm dd yy dd mm yy 54 Time Date Set Sets the internal date and time of the lt time date gt TAAT Clock is not set u
90. r the latest documentation Storage Medium Drive Failure Hard disk drives are mechanical devices and are susceptible to damage from physical shock One type of physical shock called operating shock occurs when the disk is in operation During opera tion the drive head is typically over the drive platters reading and writing data When a physical shock to the drive occurs during operation the head and the platters can come into contact causing both components to be damaged The second type of shock called non operating shock occurs when the head is in the unloaded position or not positioned over the platters When a physical shock occurs in the non operating state the head can contact the ramp it is positioned over and dam age the ability of the head to read and write data to the hard disk drive All devices with hard drives are subject to damage from operating and non operating shock The mechanical construction of the 744T is designed to minimize the transmission of shock to the hard drive The drive is isolated from the chassis using special shock reducing closed cell foam This material increases the amount of shock the hard drive can withstand Additional protection can be achieved by operating the unit in a carry case If the recorder is used in applications subject to extreme motion Sound Devices recommends recording to CF medium only The hard drive will park its write heads to reduce the chance of failure With all electr
91. rded files 4 Select the storage medium internal hard drive Compact Flash or both for recording Time Code Setup When using a time code workflow proper time code setup is essential Skip this section if time code is not being used 1 Select a time code frame rate appropriate for your project For film production typical the time code rates are 30 fps non drop US or 25 fps EU For standard definition video projects use either 29 97 or 29 97 non drop For high definition projects use either 23 976 or 29 97 2 Select the time code run mode free run record run 24 hr run or one of the external run modes 3 Use the 744T as the master clock source and jam time code to all other recording devices This will assure that every device is using the same time reference See Time Code for additional information on time code setup Recording Now that file parameters are set you are ready to begin recording The 744T is a record priority device pressing the record key cancels all functions except file based operations and immedi ately begins recording a new file When record is pressed the red record LED illuminates to confirm record mode The filename on the LCD display shows the currently recorded file Push the CD stop key 150 ms to end recording Playback When recording is stopped the most recently recorded file is immediately available for playback Press the gt key to begin file playback from the beginning of
92. rket matches its size and feature set In addition its learning curve is quite short powerful does not mean complicated While the 744T is a very capable recorder by itself it truly excels when used in conjunction with an outboard audio mixer such as Sound Devices own 442 or 302 Sound Devices took advantage of the best in professional and consumer electronics technologies to bring incredible feature depth with ease of use Its two recording media hard drive and Compact Flash are highly reliable industry standard and easily obtainable The removable rechargeable bat tery is a standard Sony compatible Li ion camcorder cell The 744T interconnects with Windows and Mac OS computers for convenient data transfer and backup Copyright Notice and Release All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the expressed written permission of SOUND DEVICES LLC SOUND DEVICES is not responsible for any use of this information SOUND DEVICES LLC shall not be liable to the purchaser of this product or third parties for damages losses costs or expenses incurred by purchaser or third parties as a result of accident misuse or abuse of this product or unauthorized modifications repairs or alterations to this product or failure to strictly comply with SOUND DEVICES LLC s operating and
93. s 40 stereo hours of record time Note that most storage mediums now quote capacity in GB using SI units where 1000 megabytes equals one gigabyte PCM Audio Uncompressed digital audio is expressed numerically by two measurements bit depth and sampling frequency such as 16 bit 48 kHz These two numbers are used to compute the data rate of uncom pressed audio Audio Data Rate Bit Depth x Sampling Frequency In the example below the data rate of a single 16 bit 48 kHz audio stream is computed in megabytes per minute Division by 1 048 576 converts from bits to megabits Division by 8 converts from mega bits to megabytes multiply by 60 converts seconds to minutes 16 x 48000 1 048 576 8 x 60 5 49 MB min MP3 Compressed Record Time in Hours MP3 Data Rate bit depth sample rate stereo track 64 kb s 96 kb s 128 kb s 160 kb s 192 kb s 256kb s 320 kb s 0 47 MB min 0 70 MB min 0 94 MB min 1 17 MB min 1 40 MB min 1 86 MB min 2 34 MB min 1 35 28o 140 Wo 8 7 aa Stee SAE ke Ge 4k aie ak cae a a ee o a 4 142 94 7 56 47 35 28 os 15 533 355 HH 213 O TT 133 106 2 40 1422 ao 71 568 44 355 284 60 2133 1422 1066 853 mi 5338 426 e ao ueni ae an as ee ae ee The chart above shows recording time available with the 744T when recording to an MP3 file Time is expressed in hours at the specified MP3 supported by the 744T Note that all recordings are two channel recordings Compresse
94. s turned on there is no exter pin 4 to positive nal current draw when powered off Use when connecting to an external battery pack Regardless of whether pins 1 and 4 or pins 2 and 3 are used the unit will always charge the Li ion battery when the unit is powered on Pin 1 and pin 2 of the external DC input are at the same ground potential as chassis and signal ground The voltage level of the source powering the unit is shows on the LCD ET REL When the 744T senses a low voltage condition from an external DC source the power LED and battery voltage display flashes to alert the user When the external DC reaches 9 volts the 744T will automatically switch over to the removable battery If no battery is installed the unit will shut down The included AC to DC wall wart power supply operates the unit and charges the removable bat teries simultaneously Pins 3 and 4 are wired to and pins 1 and 2 are wired to When power is applied the charging circuit evaluates the battery condition and supplies charg ing current if necessary When charging the amber charge LED will flash Once the battery is fully charged the charger will turn off and the amber charge LED will light solid indicating a full charge Large capacity cells increase the charge time Charge LED Activity Description of Activity Off Charger disabled On Completed charge battery fully charged 1 blink Ch
95. setup menu SOUND Q DEVICES a 744T User Guide and Technical Information Routing Inputs to Tracks Before recording inputs must be assigned to tracks Each of the 744T s four inputs 1 2 3 4 can be assigned to any of the four tracks A B C D These 256 possible routing combinations are shown on the front panel with 16 blue LEDs Illuminated LEDs indicate input to track assignment 1 Press the input key to cycle through factory routing presets The 744T has six often used presets for quick setup of input to track routing combinations Note the routing combinations on the blue LEDs with each successive press 2 If none of the preset routing combinations are suitable assign a custom routing Sequential presses of the input key will eventually cycle to the custom routing option see Input to Track Routing pg 18 3 Press Exit to leave input routing mode The custom input routing menu allows any input to be assigned to any track Multiple inputs can be as signed to a single track If no input is assigned to a track the 744T will not record Recording Parameter Setup For most productions the general recording parameters of bit depth sample rate media selection and file format are changed infrequently Enter the setup menu to verify recording settings Bit depth and sample rate are displayed on the LCD panel 1 Select the bit depth as needed 2 Set the sample rate as needed 3 Select the file format for reco
96. size and space remaining on connected Compact Flash medium 72 CF Space Formats installed Compact Flash medium 73 CF Erase Caution while various PC utili ties are able to recover files from re formatted drives once formatted old audio data is not accessible by the 744T Runs a utility that will repair minor errors in the directory structure of the Compact Flash Calibrates the center position of the input Place balance control to center and press to _ 2 pot when used as the balance control select for MS recording 74 CF Repair 75 Balance Cal Sets the warning voltage of the low bat tery alert with an external power source Internal battery warning threshold is factory set 76 Power Ext Low Batt Volt 10 0 18 0 VDC 0 1 V steps Shows the current hardware revision _ hardware serial number and firmware version 77 Info Version Upgrade tool used to apply new firmware as provided by Sound Devices Will search all available media for the firm ware program file and apply the update 78 Update Software SOUND Q DEVICES 744T User Guide and Technical Information Specifications System Sampling Frequency internal 32 44 1 48 48 048 88 2 96 96 096 176 4 192 kHz external 32 192 kHz via word clock input Internal Data Path and Processing 32 bit 192 dB dynamic range A D D A Converters 24 bit 192 kHz sa
97. splay SOUND Q DEVICES 744T User Guide and Technical Information selet to move up and down menu INPUT ki TRACK C arrow indicates high lighted input is assigned to highlighted track select to exit menu and apply selected routing doi e ey select to remove SBINPUT 4 TRACK D CEREN lt input assignment Press the EDIT soft button amp and scroll to the appropriate input screen Using either the Multi Function Controller or the up and down arrows navigate to desired input to track combinations When a chosen pairing is highlighted press either the ASSIGN soft key or the Multi Function Controller to assign the combination Assigned tracks are noted on the screen by the addition of an arrow pointing to the record track The LED routing matrix will also show a flashing blue LED for the currently selected input to track combination 5 Once a track is assigned move to the next input to track combination desired 6 To remove an input to track combination assignment navigate that combination and press the UNASSIGN soft key or Multi Function Controller 7 Exit and complete the assignment by pressing the check mark soft key The input routing menu will always exit to the main screen whether entered from the input key or the menu selection Outputs Analog and Digital The 744T has two discrete output buses the Master Output Bus and Output Bus 2 Each of these two channel buses are assigned their audio s
98. st the internal frequency Sampling Frequency Available Audio Bandwidth The sampling frequency is expressed in samples per second in hertz and defines the number of times in a second that the analog audio signal has been measured Sampling frequency determines the audio bandwidth or frequency response that can be represented by the digital signal A quick estimate of the maximum bandwidth capable of being represented at a given sample rate is maxi mum analog frequency sampling frequency 2 Higher sampling frequencies allow for wider audio bandwidth Bit Depths The 744T records at bit depths of either 16 or 24 bit 24 bit recording provides greater dynamic range and addition headroom for signal peaks relative to 16 bit recordings 24 bit acquisition is a significant benefit for field production audio tracks Bit Depth Available Dynamic Range Bit depth defines the digital word length used to represent a given sample Bit depth correlates to the maximum dynamic range that can be represented by the digital signal Larger bit depths theo retically yield more dynamic range A quick estimate of maximum dynamic range capable of being represented by a given word length is dynamic range no of bits x 6 dB Bit depth is an exponen tial measure exponent of 2 so as bit depth increases the amount of data it represents increases exponentially The majority of field recording is done with 16 bit audio therefore each sample is rep rese
99. t 26 dBu minimum gain control fully down Input Topology Mic and Line fully electronically balanced RF ESD short and overload protected pin 2 hot pin 3 cold Gain Matching Line inputs 0 1 dB channel to channel Common Mode Rejection Ratio Mic 40 dB minimum at 80 Hz High Pass Filters 40 80 160 240 Hz 12 18 24 dB oct all menu selectable Mic Powering each XLR selectable 48 V phantom through 6 8k resistors 10 mA per mic available menu selected per channel in mic or line level positions Mic Input Limiters Output Analog Line Output Clipping Level analog pre A D converter dual stage optocoupler and FET 4 dBFS threshold 20 1 limiting ratio 5 mS attack time 200 mS release time 20 dBu minimum 10k ohm load Attenuation amp Resolution 0 40 dB 1 dB increments Output Topology Line fully electronically balanced RF ESD short and overload protected pin 2 driven hot pin 3 driven cold let pin 3 float for unbalanced connections EI firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Specifications Inputs Outputs Digital AES3 id Digital Storage Internal hard drive 75 ohm 0 5 V p p S PDIF compatible with RCA adapter ATA 5 interface 1 8 in or 2 5 in hard drive 4200 7200 RPM supported FAT32 formatted up to 2 TB addressable Compact Flash CF type Il and
100. t Flash media Numbers show time in hours and minutes based on the presently se lected number of record tracks sample frequency bit rate and file type For all three media types an asterisk in front of the media descriptor indicates that the me dia is selected for record Highlighted media descriptor indicates media selected for record monitoring playback or file directory display 13 Input 1 2 Level When input 1 or 2 gain is turned this indicates the gain level in dB for inputs 1 and 2 Normal mic input gain range is from 26 dB to 70 dB low gain mic range is from 10 dB to 50 dB line input range is from 6 dB to 18 dB Locked will be displayed on the LCD when the pot is turned with digital inputs selected or with line inputs set to menu control 14 Cue Marker Display In record mode indicates when cue markers are set Markers set by pressing the record key option must be selected in setup menu In playback mode dis plays cue points numerically as they are reached ina file 15 External Digital Clock Indicator The 744T is locked to a valid external digital or word clock source when the L is in the display 10 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Hardware Descriptions Left Panel Connectors and Controls ES EBU AES EBU Mic 1 5 Mic 2 7 o o o d LINE
101. the display shows the currently set time code value In addition the 744T displays the frame rate of the incoming time code and the current frame rate setting of the 744T The 744T time code generator can be set in three ways Jam RX TC External time code is shown at the top of the LCD screen the 744T internal generator is shown at the bottom of the screen Frame rate for both external and internal time code are shown on the right side of the LCD screen between the internal and external numbers To jam the internal generator to the external value press the enter key or the Multi Function Controller button The screen will display JAMMING Once the 744T is jammed to the external time code the external and internal numbers will match and run in sync Identical to the Ambient Recording series of time code products the 744T time code generator is capable of cross jamming differing frame rates The 744T will cross jam time code at the top of the second giv ing phase accurate the 00 frames will match time code at the frame rate set in the 744T instead of the incoming frame rate Jam Zeros This menu selection resets the internal generator to zero Jam Value Press enter tone key or the controller button to jam the user entered time code start value into the internal generator Edit Value This menu allows the user to set any valid time code value 00 00 00 00 23 59 59 29 for entry with the jam value selection above The ini
102. the file To select a file for playback a firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Quick Start Guide 1 Press and hold the key to select the folder directory for playback either internal hard drive or Compact Flash The default playback directory is the volume being recorded 2 Use the Multi Function Controller or the arrow soft keys to navigate through the file directory 3 Once a file is highlighted press the play key to begin playback When playback has finished the filename will begin flashing Use the gt fast forward key or rewind key to step through files in the folder or press the CD stop key to exit playback mode FireWire File Transfer When connected via FireWire IEEE 1394a to a Mac OS or Windows OS computer see Specifications for computer requirements the internal hard drive is mounted onto the computer as letter accessible drive Use the appropriate FireWire cable either 6 pin to 4 pin or 6 pin to 6 pin for interconnection Files on the 744T can be treated as if they are local files including renaming files copying and play ing directly from the 744T hard drive In general it is good practice to copy all needed audio files from the 744T to a computer before any pro cessing is performed on the files To connect the 744T for FireWire transfer 1 Stop all playback and recording activity 2 Make certa
103. tial screen of this menu shows the currently set value as well as the current time code setting of the 744T Press the controller or the enter key tone key to enter into edit mode The user can set the time code numbers in pairs hours minutes seconds and frames Once DONE is selected the value is available to jam into the internal generator with the jam value selection A value is not jammed into the 744T time code generator until jam value is selected 28 firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation File Formats User Bits The 744T has seven user selectable user bit modes Time code user bits are a portion of the time code data which can be allocated however the user chooses Commonly user bits carry information such as the date take sound roll or camera roll number User bits are edited from the Edit U Bit selection in the jam menu Press enter tone key or the controller to enter user bit edit mode The screen will show the format and setting of the user bits Using the controller or the soft button up and down arrows user bit digits can be edited in pairs Once DONE is selected the user bits are set If editing is not available in the selected user bit mode No User Edits will appear in the screen NTSC Standard Def Video Production NTSC video uses a frame rate of 29 97 frames per second Unfortunately that leaves 108 frames per ho
104. to 40 dBFS each LED segment equals approximately 10 dB From 40 to 12 dBFS each segment equals 2 dB From 12 to 0 dBFS each segment equals 4 dB SOUND Q DEVICES Eq 744T User Guide and Technical Information Meter Ballistics Peak nly Peak Hold Only lt mM Peak WU The output meter can be set to display any of five types of meter ballistics VU Peak Peak hold a combination of VU and Peak and a combination of VU with Peak hold The meter ballistics are selected in the setup menu VU Volume Units Ballistics correspond closely to how the human ear perceives loudness and provides a good visual indication of how loud a signal will be In VU mode the attack and decay of the meter signal is 300 mS While giving a very good visual indication of perceived loudness VU meters gives poor information on actual signal peaks and are virtually useless for tracking to the 744T In VU mode the front panel meter labeling is in volume units Peak Peak reading ballistics correspond to actual signal maximums but don t necessarily correspond to perceived signal loudness A peak meter has a near instantaneous attack to display maximum signal amplitude and a slow decay to allow the user to see them Peak metering is essential for digital re cording since signal overload can cause immediate distortion The peak meters front panel markings are calibrated in dBFS decibels relative to full scale digital signal Peak Hold Essenti
105. ts 3 and 4 To use the AES3 inputs the input mode select switch must be set to AES EBU 1234 OOOO The front panel digital input LEDs will illuminate when digital input is selected for the in dicated track s If the LED is flashing digital input is selected but a no valid digital clock is received Digital Inputs AES3id S PDIF The 744T accepts AES3id and S PDIF unbalanced digital signals at the BNC connectors The 744T will auto detect the type of digital signal and adjust accordingly Input signals are in pairs signals on BNC 1 appear at inputs 1 and 2 signals on BNC 2 appear at inputs 3 and 4 AES3id inputs override analog signals present at the XLR inputs To input analog audio while using the AES3id signal as a digital clock source you must select analog in the input source menu selection for the appropriate inputs When a digital signal is present the 744T will lock its sample rate to the source frequency This is indicated by a highlighted block on the main LCD display to the right of the bit depth and sample rate indicators Recording bit depth is not affected by the external digital source If you are locking the 744T to an external digital signal be certain the source is stable Loss of the digital signal will cause the 744T to revert to its internally set sample rate even while recording The portion of the file recorded after the loss of signal may not play back properly Once recording has begun unused digital inputs
106. tures and specifications are subject to change Visit www sounddevices com for the latest documentation Notes Notes SOUND Q DEVICES 63 SOUND Q DEVICES 744T rev 1 24
107. u ous file e New File A new file is started with each press of the record key the take counter is increased by one 37 File Marker Pre roll New files created by the marker mode Disabled can have the selected amount of pre roll e Enabled appended to the beginning of each file when enabled 38 File Max Size Selects the file size where the 744T will P Close then start a new file The 744T will yee GiB F ae _ not record a file larger than the selected 5 GB 950 MB SIze 1GB 450 MB The largest file permissible with the e 640 MB 744T s FAT32 file system is 4 GiB i 39 File Folder Options l Selects whether files are placed in the e Single folder main SOUNDDEV folder or a new e Daily folder folder for each production day or unique Scene Folder scene 40 File View Files Enters the file directory tree for the Highlight media descriptor to navigate the selected drive menu 41 Allows the user to select a file or a range e Copy all In HDD gt CF File Copy File Select _ Of files to be copied from one media to another Files will only be copied from their current directory to a directory of the same name on the other media If a file will not fit on the destination media user is given the option to skip that file and continue with the copy or abort the copy all together User is advised at the end of the copy process how many files were copied s
108. uccessfully Copies all files and directories from the internal hard drive to the Compact Flash e Last 24 hr gt CF Copies all files recorded in the last 24 hours from the hard drive to the Compact Flash Last 48 hr gt CF Copies all files recorded in the last 48 hours from the hard drive to the Compact Flash Flagged In HDD gt CF Copies all files on the internal hard drive that have their flag bit set to Compact Flash All files when recorded automatically have their flag bit set to on Copy All CF gt In HDD Copies all files and directories on the Com pact Flash to the hard drive Last 24 hr In HDD Copies all files recorded in the last 24 hours from the Compact Flash to the hard drive e Last 48 hr gt In HDD Copies all files recorded in the last 48 hours from Compact Flash to the hard drive _ Flagged CF gt In HDD Copies all files from the Compact Flash that have their flag bit set to the hard drive 42 File Copy Flag Control Selects whether the flag bit is cleared _ or not on files copied from one media to another e Disabled a Enabled SOUND Q DEVICES 744T User Guide and Technical Information Setup Name Setup Description 43 Time Code Frame Rate Sets the time code frame rate All com Setup Parameters 23 976 used with high definition video mon time code frame rates are available 24 to sync aud
109. ur unaccounted To keep 29 97 time code in sync with clock time the concept of drop frame was devised Two frames are dropped at the top of each minute not divisible by 10 54 drops per hour x 2 frames 108 frames per hour To sync the 744T to a video camera first determine if the camera is in drop frame or non drop frame mode If you the DP or the producer are unsure about what setting to use check with post produc tion if possible As a rough guideline video for NTSC broadcast is drop frame you can use non drop frame for anything else as long as all recorders are recording in the same mode 1 Set the 744T to either 29 97DF or 29 97 respectively 2 Jam the camera using a LEMO 5 to BNC adapter cable connected to the time code input on the video camera 3 Switch the camera to free run time code The 744T time code should appear in the time code display on the camera 4 Disconnect the time code cable The camera and recorder time code should now be running in sync Check it after roughly 5 minutes to be certain synchronization is maintained Video cameras are notorious for time code instability when switched off If the video camera must be shut down re jam it when it is powered back up Audio File Formats The 744T records audio to industry standard file formats Windows Wave WAV Broadcast Wave BWE monaural and polyphonic and MPEG Layer 3 MP3 WAV BWF The 744T adheres to the AE
110. ut routing presets Last preset will open the input routing menu to the custom route selection DRI toggles input 1 phantom power OO toggles input 2 phantom power amp toggles input 1 high pass OW toggles input 2 high pass EJ firmware v 1 24 Features and specifications are subject to change Visit www sounddevices com for the latest documentation Warranty and Support Warranty and Technical Support Warranty amp Service Sound Devices LLC warrants the 744T Portable Audio Recorder against defects in materials and workmanship for a period of ONE 1 year from date of original retail purchase This is a non trans ferable warranty that extends only to the original purchaser Sound Devices LLC will repair or replace the product at its discretion at no charge Warranty claims due to severe service conditions will be addressed on an individual basis THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE SOUND DEVICES LLC DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU LAR PURPOSE SOUND DEVICES LLC IS NOT RESPONSIBLE FOR SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM ANY BREACH OF WARRANTY OR UNDER ANY OTHER LEGAL THEORY Because some jurisdictions do not permit the exclusion or limitations set forth above they may not apply in all cases For all service including warranty repair please contact Sound Devices for an RMA return mer
111. ww sounddevices com for the latest documentation File Management Automatic Flag Clearing The 744T can be set to clear the flag bit of copied files automatically When enabled in the File CopyFlagControl menu all files copied internally by the 744T but not via FireWire will have their flag bits cleared on the original file Folders Files generated by the 744T are placed in either the root SOUNDDEV folder a daily sub folder within the SOUNDDEV folder or a Scene sub folder within SOUNDDEV Options are chosen in the setup menu from the following e Single folder all files are placed in a SOUNDDEV folder This is appropriate for non sync files such as wild sounds effects etc Note that if many many files are generated this filing action can become cumbersome to manage and navigate Daily folder a new sub folder is generated in the SOUNDDEV folder each calendar day All files recorded on that day are placed within it The daily folder is made based on the onboard clock and used the syntax of YxxMxxDxx where Y is year M is month and D is day Make certain that the 744T time of day clock and date are properly set Scene Folders a new sub folder is generated in the SOUNDDEV folder each time the scene name changes All files with a specific scene name will be place in its cooresponding scene folder File Time and Date Similar to a computer file system all files recorded by the 744T are stamped with the time and date o
112. y types ranging from 1000 mAh to 7000 mAh The 744T s mount accommodates unlimited battery depth Larger amp hour cells provide more run time When powered by the removable Li ion battery the LCD displays the battery voltage level of the powering source The nominal operating voltage for Li ion batteries is 7 2 V with operating voltages ranging between 6 5 8 5 V When the battery drops to 6 5 V the LCD voltage display and the power LED begin flashing to warn that the battery is nearly depleted When the voltage reaches 6 3 volts the 744T will power down any recordings in process will automatically be closed stopped External Powering and Battery Charging The 744T can be powered externally from 10 18 VDC 2 amp minimum External DC fully pow ers the unit and charges an attached Li ion battery simultaneously using the 744T s onboard Li ion charger The charger circuit operates whenever the unit is powered on and optionally when the unit is off depending on the external power wiring see below DC input uses a 4 pin Hirose connector Part HR10 7P4P There are two connection options avail able SOUND Q DEVICES a 744T User Guide and Technical Information External DC Input Wiring Operation pin 2 to negative operates the on board Li ion charger when the unit is both turned on and off Use when pin 3 to positive plugged into AC power pin 1 to negative operates the on board Li ion charger only when the unit i

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