Sound Devices 744T User Manual And Technical Information
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Sound Devices 744T User Manual And Technical Information

High resolution digital audio recorder with time code
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744T
High Resolution Digital Audio Recorder with Time Code
User Guide and Technical Information
fi rmware rev. 2.34
Sound Devices, LLC
300 Wengel Drive • Reedsburg, WI • USA
+1 (608) 524-0625 • fax: +1 (608) 524-0655
Toll-Free: (800) 505-0625
www.sounddevices.com
1.8" HDD
2.5" HDD

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  • Page 1 High Resolution Digital Audio Recorder with Time Code User Guide and Technical Information fi rmware rev. 2.34 1.8" HDD 2.5" HDD Sound Devices, LLC 300 Wengel Drive • Reedsburg, WI • USA +1 (608) 524-0625 • fax: +1 (608) 524-0655 Toll-Free: (800) 505-0625 www.sounddevices.com...
  • Page 2 backside - front cover...

  • Page 3: Table Of Contents

    Table of Contents Quick Start Guide ........3 iXML Recording Time Calculation .
  • Page 4 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 modifi cations, repairs, or alterations to this product, or failure to strictly comply with SOUND DEVICES, LLC’s operating and installation instructions.

  • Page 5: Quick Start Guide

    Quick Start Guide The 744T is an extremely powerful and fl exible portable audio recorder. Before recording, please familiarize yourself with the product. Several settings should be verifi ed or set based on individual recording needs. Powering the Unit Apply power to the unit by attaching the (included) removable, rechargeable Li-ion (lithium ion) bat- tery to the back panel battery mount.

  • Page 6: Routing Inputs To Tracks

    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.

  • Page 7: Playback

    Files on the 744T can be treated as if they are local fi les, including renaming fi les, copying, deleting and playing directly from the 744T hard drive. In general, it is good practice to copy audio fi les from the 744T to a computer before any processing is performed on the fi les.

  • Page 8: Front Panel Descriptions

    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 fi eld mixers and wireless transmit- ters and receivers.
  • Page 9 Power Key Fast-Forward Key Press and hold to power up the 744T. Performs fast-forward (FF) scrubbing Press and hold to power down. through the played fi le when pressed in playback and play-pause mode. Play- Charge LED pause indicated by fl ashing A-time on Indicates the charge status of the on- LCD.

  • Page 10: Panel Lock

    Panel Lock 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 displays any but- ton lock options enabled. select the soft buttons to...

  • Page 11: Lcd Display Descriptions

    If a drive is not attached the indicator Alternating display between the set date shows dashed lines. Bar graph indicates and time of the 744T. This information is amount of record time remaining on written as the creation and modifi cation the external FireWire volume.
  • Page 12 External Digital Clock Indicator For all three media types, an asterisk in front of the media descriptor indicates that the me- The 744T is locked to a valid external dia is selected for record. Highlighted media digital or word clock source for record- descriptor indicates media selected for record ing when the L is in the display.

  • Page 13: Left Panel Connectors And Controls

    Headphone Volume Mic-Line-AES3 Input Switch Adjusts the headphone volume. NOTE: Selects the input level and mode of the the 744T is capable of producing ear- associated XLR input connector. damaging levels in headphones. TA3 Channel 3&4 Line Inputs Tape Output Active-balanced line-level input connec- Unbalanced tape (–10 dBV nominal)

  • Page 14: Right Panel Connectors And Controls

    Also Unbalanced digital output, two-channel, used to attach external FAT32-formatted for the Master Output Bus. Signal source FireWire drives to the 744T for direct is menu-selected and is identical to the recording and copying. Analog Master Output Bus signal.

  • Page 15: Back Panel Descriptions

    Back Panel Descriptions Security Slot Battery Mount Compatible with the Kensington ® Secu- Accepts Sony ® InfoLithium L- or M- rity Slot specifi cation. Useful for secur- Series batteries. Also accepts batteries ing the recorder to a fi xed object with a conforming to this mount.

  • Page 16: Input Setup And Control

    Input Setup and Control The 744T has four inputs and four record tracks. Inputs can be analog or digital sources. Analog inputs 1 and 2 use XLR connectors; inputs 3 and 4 use TA3 connections. Digital inputs can be either AES3 (balanced at the XLR) or AES3id (on BNC) inputs.
  • Page 17 pressing the HDD key. If the inputs are in line level mode, phantom power will not activate from the shortcut keys and must be activated from the menus. Phantom power is linked when the inputs are linked. (See Input Linking) Input Limiters (mic-level only) Microphone inputs 1 and 2 each have a limiter circuit designed to prevent input overload.

  • Page 18: Input Linking (Stereo Or Ms Decoding)

    3 and 4 are adjusted only in the setup menu. 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- puts 3 and 4.

  • Page 19: Signal Presence And Peak Indicator

    744T. The 744T clocks itself to the fi rst 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 fi...

  • Page 20: Input-To-Track Routing

    744T User Guide and Technical Information Input-to-Track Routing The 744T uses a fl exible routing scheme to assign inputs and tracks for recording. The input matrix allows any input to be routed to any recording track. Multiple inputs can be routed to a single track to create mono-mixed recordings.

  • Page 21: Selective Input Muting

    To remove an input-to-track combination assignment, navigate that combination and press the UNASSIGN soft key or Rotary Switch. 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.

  • Page 22: Sampling Rate And Bit Depth

    See Time Code section for more information about the 48.048F, 47.952F, and 96.096F rates. 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 recording (versus 16 bit) is a signifi...

  • Page 23: Word Clock

    16 bit, meaning the least signifi cant 8 bits are discarded. Once a fi le is recorded its sampling rate and bit depth can not be changed in the recorder. The 744T does not perform sample rate conversion or bit depth changes. File conversion must be done in another environment, such as an audio workstation.

  • Page 24: Multi-Unit Linking Via C. Link

    744T User Guide and Technical Information Multi-Unit Linking Via C. Link The proprietary C. Link (control link) connection enables multiple 744T, 722, 702T, and 702 record- ers to be connected for recordings requiring high track counts. C. Link also enables connection to the CL-1 Remote Control and Keyboard Interface.

  • Page 25: Outputs - Analog And Digital

    Outputs – Analog and Digital The 744T has two two-channel output buses , the Master Output Bus and Output Bus 2. Each of these buses is assigned audio sources independently, enabling the 744T to feed multiple outputs with unique program.

  • Page 26: Output Bus 2

    40 dB. Headphone Output The 744T headphone output is a fl exible tool for monitoring audio in the fi eld. The 744T allows the user to monitor inputs, tracks, and post-record tracks in a number of combinations. MS stereo and B-format surround decoding are also available in headphones.
  • Page 27 HP Sources Description Inputs 1,2 Stereo monitoring of input pairs. Inputs 1 and 3 are assigned to left headphone output; Inputs 3,4 inputs 2 and 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 C,D tracks 2 and 4 are assigned to right headphone output.

  • Page 28: Ms Stereo Monitoring

    You can exit the selection process by pressing the stop or cancel (backlight) key at any time. If you press (done) in the fi rst headphone slot, the 744T will select a single option (Tracks A, B) for head- phone monitoring.

  • Page 29: Rotary Switch Behavior

    Headphone Warning Tones The 744T can generate an audible beep, or warning “bell”, in the headphones when an error has occurred. The specifi c 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.

  • Page 30: Metering And Display

    744T User Guide and Technical Information Metering and Display 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, separate peak indicators on input channels show clipping activity.

  • Page 31: Peak Leds

    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. These LED’s also function as indicators of input mute activity (see Input-to-Track Routing).

  • Page 32: Lcd Contrast & Backlight, Led Brightness

    All fi les 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 simplifi es synchronization in post- production.

  • Page 33: Frame Rate

    Frame Rate A single time code frame rate is selected in the TIMECODE:FRAMERATE menu. The 744T supports all of the common production time code rates, including: • 23.976 – used with Sony high defi nition video cameras • 24 – to sync audio to fi lm where no transfer to NTSC video is expected •...

  • Page 34: Time Code Modes

    The internal time code generator follows an external time code signal appearing at the time code input. In all of the external time code modes the time code value set on the 744T appears as the re- corded fi le’s time code rate value.

  • Page 35: Jam Menu

    LCD screen; the 744T internal generator, user bits, and frame rate are shown at the bottom of the screen. To jam the 744T from an external value, press soft key next to the jam button or the Rotary Switch 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.

  • Page 36: Frame Rate

    The initial screen of this menu shows the currently set value as well as the current time code setting of the 744T. Press the Rotary Switch 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).

  • Page 37: Frame Rate

    2 frames = 108 frames per hour. To sync the 744T to a video camera, fi rst 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.

  • Page 38: Recording

    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 fi le 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.

  • Page 39: Playback

    AutoPlay The 744T can be set to play back all valid audio fi les 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 •...

  • Page 40: Audio File Formats

    The 744T records audio to the industry-standard Broadcast Wave fi le format, either monophonic or polyphonic, MP2, MP3, or FLAC. Files created by the 744T receive the .WAV, .MP2, .MP3, .FLAC fi le extensions. The 744T will read fi les with the .BWF extension.

  • Page 41: Flac .Mp2

    The 744T includes iXML (revision 1.5) data in addition to the broadcast wave extension data. For iXML-aware software applications this data is available. For applications that don’t recognize iXML, this information is ignored.

  • Page 42: Recording Time Calculation

    30.3 50.6 The chart above shows recording time available with the 744T. Time is expressed in hours per track (track-hours) at the specifi ed data rate supported by the 744T. If recording two tracks, divide the track hours fi gure by two. Similarly for four-track recording, divide track-hours by four. Note that the 744T supports additional sampling rate / bit depth combinations, however, only the most com- mon are included below.

  • Page 43: Mp3 Compressed Record Time In Hours

    1185 The chart above shows recording time available with the 744T when recording to an MP3 fi le. Time is expressed in hours at the specifi ed MP3 supported by the 744T. Note that all recordings are two- channel recordings.

  • Page 44: Take Numbers

    “-” or “T”. Take numbers can be overridden and a new take number can be set in the setup menu. If the 744T detects a fi le with a duplicate name in the destination folder, a letter suffi...

  • Page 45: Mono Track Name Designators

    Duplicate File Names When the 744T detects that a duplicate fi le name is going to be generated in any specifi c folder, the 744T changes the fi le name by adding of a letter suffi x before the extension. For instance, if take numbers are reset but fi...

  • Page 46: File Viewer Navigation

    HDD key. By default the folder where the last recorded fi le or played fi le is located with be the folder fi rst opened. The 744T knows this fi le name by reading a .txt fi le written to each time the unit records or plays audio.

  • Page 47: File Viewer Screen

    File Time and Date Similar to a computer fi le system, all fi les recorded by the 744T are stamped with the time and date of fi le generation. To ensure that accurate time-of-day and fi le generation dates are written for each fi...

  • Page 48: File Size Maximum

    FAT32 has a maximum individual fi le size limitation of 4 GB. While it is possible to have thousands of fi les on the 744T storage volume(s), the largest any single fi le may be is 4 GB. The 744T automati- cally splits an audio fi...

  • Page 49: File Deletion

    Error Conditions: If a fi le is to large for the destination storage medium, the 744T will prompt to skip it or cancel copy- ing. If an error occurs during fi le copying, the 744T will prompt to cancel the transfer. When the destination storage medium is full, the 744T will report the error and end the transfer.

  • Page 50: Emptying The Trash And False Take Folders

    744T User Guide and Technical Information Emptying the Trash and False Take Folders Files that have been moved to the trash and false take folders (see below) can be permanently delet- ed from the recorder. Each drive has its own Trash and False Take folders and they are permanently deleted independently.

  • Page 51: Storage Medium - Internal Hard Drive

    Formatting the drive prevents fragmentation and reduces the likelihood of directory cor- ruption. Be certain that all fi les on the 744T drive have been backed up to another media before formatting. Once formatted, all data on the drive will be erased. Dynamic lists such as track names, scene names, folder options, etc...

  • Page 52: Drive Type

    Drive Type The 744T ships with a 2.5-inch ATA-5 interface, 5400 RPM hard drive. Sound Devices has chosen the specifi c mechanism for maximum vibration and shock resistance. Most 2.5 inch drives conforming to the ATA specifi cation 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.

  • Page 53: Drive Failure

    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.

  • Page 54: Storage Medium - Removable Compactflash

    CompactFlash (CF) is a practical, portable storage medium for audio recording. Its speed, capacity, and price continue to evolve to the benefi t of portable recorders. The 744T can write to and read from CF cards as either its sole storage medium or simultaneously with the internal hard drive.

  • Page 55: Cf Media Repair

    FAT32 volumes. Upon connection to an unformatted (or non-FAT32 formatted) external drive, the 744T will prompt the user to format the drive. If the drive is already formatted as a FAT32 volume the drive will be ready to be selected as a storage medium. The front panel drive LED will illuminate to show which drives are available for recording.

  • Page 56: Firewire Bus Powering

    744T User Guide and Technical Information After recording to an external drive has stopped, it may take several seconds for the 744T to fi nish “housekeeping” on drive. This is especially true when recording to DVD-RAM disks, which generally have slower throughput than hard drives. When preparing to disconnect a FireWire drive, always observe the amber activity LED labeled EXT.

  • Page 57: File Transfer Using Firewire

    The 744T’s FireWire (IEEE-1394) port makes transfering of recorded fi les to a computer quick and easy. When connected to a computer, the internal hard drive and CompactFlash card of the 744T will mount to a Mac OS X or Windows computer as a local, removable mass storage volume. Using Mac Finder, Windows Explorer, or any other fi...

  • Page 58: Powering

    744T User Guide and Technical Information Make certain that any software applications that reference the 744T drive are closed and that all fi le copy functions to and from the 744T have completed. In Mac OS X highlight the drive icon on the desktop and select -e to eject the volume.

  • Page 59: External Powering And Battery Charging

    744T senses a low voltage condition from an external DC source the power LED and battery voltage display fl ashes, 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.

  • Page 60: Auto Functions With External Powering

    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 (12 volts), depending on ac- tive functions. The following functions have the most signifi cant affect on power consumption: Inputs Active analog inputs increase power consumption.

  • Page 61: Firmware Upgrades

    fi rmware fi le is present on either the internal hard drive or CF the recorder will prompt if the path is the proper fi le to use. Press the Rotary Switch or the tone key to say yes. The 744T will begin fi rmware upgrade and validation.

  • Page 62: Cl-1 Remote Control And Keyboard Interface

    PS/2 compliant computer keyboards and enable external devices to control the 744T. When us- ing the CL-1, front panel controls and menu selections on the 744T can be mapped to keyboard short- cuts, allowing for full keyboard control of the recorder. Additionally the CL-1 has contact closures for programming remote inputs or outputs.
  • Page 63 Goes to the end of the string being edited Assignable Shortcuts Keyboard shortcuts can be programmed to control nearly every function on the 744T. Shortcuts can select and change menu items with a simple key strokes. Combinations of computer keyboard func- tion keys, along with Control-, Alt-, and Shift- can also be programmed.

  • Page 64: Logic Inputs

    744T User Guide and Technical Information Select an unassigned shortcut number for programming. If a duplicate key sequence is selected the low- est shortcut number action takes place. The example below shows the F1 key being reprogrammed. After selecting a key sequence select the desired Setup Menu item or action. The example below shows the reprogramming of the F1 key to change the sampling rate to 48048.

  • Page 65: Logic Inputs

    Confi gured as a switch-closure input, a pin can be connected to a switch that a user has wired to assigned contact. This switch can then trigger the 744T to begin recording. Other functions can be assigned as well from the Setup Menu. The switch-closure on a given pin of the CL-1 can be thought of as just another key on the keyboard.

  • Page 66: Setup Menu Presets

    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, fi lm, reporter, and music presets allow for quick setup of typical param- eters for the defi...
  • Page 67 Factory Pre- Film Reporter Music 744T Presets Preset Preset Preset Input 2: Delay 0 usec 0 usec 0 usec 0 usec Input 3: Delay 0 usec 0 usec 0 usec 0 usec Input 4: Delay 0 usec 0 usec 0 usec...

  • Page 68: User Setup Data File

    By entering QUICK SETUP from the Setup Menu, selecting SAVE USER TO INHDD/CF the user can save or restore parameters to and from this data fi le. This binary fi le is named 744T.SUP and is saved in the SOUNDDEV directory on the medium selected in the setup menu.

  • Page 69: 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, fl at architecture with no sub- menus, easing navigation. Each setup controls a specifi c parameter with several selections. The chart below shows the setup number, a description of the control, and the menu options available.

  • Page 70: Setup Options

    • Either scene or daily - takes reset on either change Rec: Pre-Roll Time Selects the amount of pre-roll time the 744T 0–10 sec. @ 48 kHz will add to the beginning of each file. 0–5 sec. @ 88.2–96.096 kHz 0–2 sec.
  • Page 71 File: Max Size Selects the file size where the 744T will close, • 4 GB CF (3.6 GB) then start a new file. The 744T will not record • 2 GB CF (1.8 GB) a file larger than the selected size.
  • Page 72 744T User Guide and Technical Information Setup Name Setup Description Setup Options Time Code: Frame Rate Sets the time code frame rate. All common • 23.976 – used with high definition video cameras time code frame rates are available. • 24 – to sync audio to film where no transfer to NTSC video is expected •...
  • Page 73 Selects the date syntax of the recorder. • mm/dd/yy • dd/mm/yy Time/Date: Set Sets the internal date and time of the 744T. <time, date> Resetting the time re-jams the internal time Clock is not set until <done> is selected code generator to the set time. Setting the internal clock during a production day will require time code devices to be re-jammed.
  • Page 74 744T User Guide and Technical Information Setup Name Setup Description Setup Options • VU only • Peak+VU Meter: Ballistics Selects among five different meter ballistics settings • Peak only • Peak-hold + VU • Peak-hold only Meter: Peak Threshold User-set level in dBFS where track peak 0 to −20 dBFS (1 dB increments)
  • Page 75 Caution, while various PC utilities are able to • Empty both recover files from a re-formatted drive, once formatted old audio data is not accessible by the 744T. INHDD: Repair Runs a utility to repair minor errors in the directory (FAT) of the drive.

  • Page 76: Setup Menu Shortcuts

    • German • French CL-1: Re-program The CL-1 has its own firmware which is sup- plied from the 744T. This utility updates the CL-1 firmware. CL-1: Logic Out Assign Each logic output pin can be assigned to go • Undefined high when the unit is in the selected mode.

  • Page 77: Front Panel Button Shortcuts

    Tone will be active as long as the tone button is held. Jam Menu Menu and HDD Enters the time code jam menu. (702T &744T Only) Button Lock Backlight and Tone Press backlight then tone to lock all front panel buttons except for Record, Stop and Play.

  • Page 78: Specifi Cations

    744T User Guide and Technical Information Specifi cations System Sampling Frequency internal: 32, 44.1, 47.952, 48, 48.048, 88.2, 96, 96.096, 176.4, 192 kHz external clocking: 32–192 kHz via word clock input Internal Data Path and 32 bit, 192 dB dynamic range...
  • Page 79 Output Analog Line Output Clipping +20 dBu minimum, 10k ohm load Level Attenuation & 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. Inputs/Outputs –...

  • Page 80: Dimensions And Weight

    744T User Guide and Technical Information Power 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...

  • Page 81: Connector Pin Assignments

    Connector Pin Assignments Each connector type, electrical characteristics, and pin assignment is shown below. Connector Pin Assignments Notes 1 – ground 7.5k ohm input impedance, mic level (Analog Inputs) 2 – signal (+) 20k ohm input impedance, line level 3 – signal (-) active-balanced 1 –...

  • Page 82: Accessories

    CS-442, CS-302, and CS4W mixer bags XL-1A (sold as pair) • TA3F to TA3F cable, used to connect the direct outputs of the a Sound Devices 442 mixer to the channel 3/4 analog line-level inputs XL-2 (sold as pair) •...
  • Page 83 XL-B2 • removable, rechargeable, Li-ion battery; 4800 mAh battery; it’s good to have several spares XL-WPH2 • power adapter included with unit; 100–240 VAC input, 12 VDC output; it’s good to have a spare...

  • Page 84: Ce Declaration Of Conformity

    According to ISO/IEC Guide 22 Sound Devices, LLC 300 Wengel Drive Reedsburg, WI 53959 USA declares that the product, 744T Professional Digital Audio Recorder is in conformity with and passes: 89/336/EEC EMC Directive EN55103-1, 1997 EMC-product family standard for audio, video, audio- visual and entertainment lighting control apparatus for professional use.

  • Page 85: Software License

    Sound Devices, LLC product, even if Sound Devices, LLC has been advised of the possibility of such damages.

  • Page 86: Warranty And Technical Support

    Sound Devices cannot guarantee that a given computer, software, or operating system confi gura- 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 fi le type selected.
  • Page 88 744T rev. 2.33- Printed in U.S.A.

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