Sound-devices 744T Manual do Utilizador

744THigh Resolution Digital Audio Recorder with Time Code User Guide and Technical Information firmware rev. 2.67Sound Devices, LLC E7556 State Rd.

744T User Guide and Technical Information 4v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docum

59) Level Meter LEDs Four, 19-segment track level-meters in-dicate level in dBFS. Metering ballistics are selected in the setup menu. 10) Power K

744T User Guide and Technical Information 6v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docum

7LCD Display Descriptions 1 8 7 6 5 4 2 3 9 10 11 12 1) Battery Level Indicator Shows voltage level of the removable battery or external power

744T User Guide and Technical Information 8v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docum

9Left Panel Connectors and Controls 1 8 7 6 5 4 2 3 1) XLR Input 1/AES3 Input 1&2 Dual function input connection. Input type set with switch

744T User Guide and Technical Information 10v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

11Back Panel Descriptions 744T1 342 1) Security Slot Compatible with the Kensington® Secu-rity Slot specification. Useful for secur-ing the reco

744T User Guide and Technical Information 12v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

13Shortcut: 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

backside - front cover

744T User Guide and Technical Information 14v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

15Digital Inputs – AES3id (S/PDIF) The 744T accepts AES3id and S/PDIF unbalanced digital signals at the BNC connectors. The 744T will auto detect the

744T User Guide and Technical Information 16v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

176. To remove an input-to-track combination assignment, navigate that combination and press the UNASSIGN soft key or Rotary Switch.7. Exit and c

744T User Guide and Technical Information 18v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

19Word Clock A stable word clock source is essential for high quality digital audio. The 744T uses a rock-stable time code crystal to generate its in

744T User Guide and Technical Information 20v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

21Available Output Sources Description Input 1 Input 2 Input 3 Input 4 Inputs are assignable for each channel of the output bus. When inputs are se

744T User Guide and Technical Information 22v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

23HP Sources Description Input 1, 1 Input 2, 2 Input 3, 3 Input 4, 4Solo monitoring of selected input. This signal is sent to both sides of the h

vQuick Start Guide ... 1Powering the Unit Menu Navigation Basics Connecting Audio Sources Routing Inputs to Tracks Se

744T User Guide and Technical Information 24v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

25Rotary Switch Behavior The action of the Rotary Switch during recording and playback is set from among the three available options: • Disabled: p

744T User Guide and Technical Information 26v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

27Peak/VU The meter can simultaneously display VU and Peak level information. In this mode the perceived loudness (VU) is displayed on a bar graph, a

744T User Guide and Technical Information 28v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

29Time Code The 744T uses time code circuitry developed by Ambient Recording GmbH, a leading developer of stable, portable time code products (visit

744T User Guide and Technical Information 30v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

31Record 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

744T User Guide and Technical Information 32v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

33744T is jammed to the external time code, the external and internal numbers will match and run in sync. no valid time code is received Make certain

744T User Guide and Technical Information viv. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

744T User Guide and Technical Information 34v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

35Recording integrity is further enhanced through a process of periodic, automatic file directory and header updates written to disk during recording.

744T User Guide and Technical Information 36v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

37tories. Navigate to the appropriate directory. Select the file that to play back with the Rotary Switch and press play. If the stop key is pressed w

744T User Guide and Technical Information 38v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

39The chart below indicates the limitations of all file types available on the 744T.File Format Bit Depth (bits) Sampling Rate - kHz(Bit Rate – kbps)

744T User Guide and Technical Information 40v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

41MP3 Compressed Record Time in Hours MP3 Data Rate (bit depth/sampling rate), stereo track 32 kb/s (0.2 MB/min)64 kb/s (0.47 MB/min)96 kb/s (0.70

744T User Guide and Technical Information 42v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

43• Never – take numbers do not reset • When scene is changed – take resets when scene name is changed • When daily folder is changed – takes rese

viiCopyright Notice and Release All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in a

744T User Guide and Technical Information 44v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

45A hierarchical view of files generated by the 744T is below. 744T 1 FALSETAKES 1 SOUNDDEV 1 TRASH 1 TOP-LEVEL 1 MID-LEVEL 1 BOTTOM-LE

744T User Guide and Technical Information 46v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

47medium. There is also a selection of sizes to ensure that files recorded will fit onto common Com-pactFlash card capacities.Setting/Clearing Flag Bit

744T User Guide and Technical Information 48v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

49Take Number Incrementing To advance to a higher take number hold the STOP button and press FastForward. The file name to be recorded is indicated ab

744T User Guide and Technical Information 50v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

51For best operation periodic re-formatting of the 744T hard drive is recommended. Formatting the hard drive rebuilds the FAT (file allocation table)

744T User Guide and Technical Information 52v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

53which will, in turn, stop the hard disk from rotating. Condensation tends to occur when the tempera-ture inside the drive suddenly falls, for examp

744T User Guide and Technical Information 54v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

55After recording to an external drive has stopped, it may take several seconds for the 744T to finish “housekeeping” on drive. This is especially tru

744T User Guide and Technical Information 56v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

57To disconnect the 744T from FireWire: 1. Make certain that any software applications that reference the 744T drive are closed and that all file cop

744T User Guide and Technical Information 58v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

59• Power on unit – unit will turn on and be ready for operation. • Power on and begin recording – unit will power on and begin recording with the

744T User Guide and Technical Information 60v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

61Firmware upgrades usually preserve all user menu settings. However, save a snapshot of the settings to a setup file on the hard drive or CF. Once a

744T User Guide and Technical Information 62v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

631. Enter the External Keyboard Assignment Setup Menu selection. Shortcut number. Up to 50 shortcuts can be programmed 2. Select an unassigned s

1Quick Start Guide The 744T is an extremely powerful and flexible portable audio recorder. Before recording, please familiarize yourself with the prod

744T User Guide and Technical Information 64v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

65744T Presets Factory Preset Film Preset Reporter Preset Music PresetRec: Track NamesTrack A: Track A Track B: Track B Track C: Track C Track D:

744T User Guide and Technical Information 66v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

67Setup Menu The Setup Menu controls a wide range of parameters for the 744T, including all audio routing, recording settings, and time code options.

744T User Guide and Technical Information 68v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

69# Setup Name Setup Description Setup Options 27 28 Input 1, 2: Source Input 3, 4: Source Forces the inputs to analog or digital mode. Default

744T User Guide and Technical Information 70v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

71# Setup Name Setup Description Setup Options 50Time Code: Jam Menu Allows the user to jam or edit the internal time code generator and user bits

744T User Guide and Technical Information 72v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

73# Setup Name Setup Description Setup Options 76Tone: Frequency Allows the user to set the frequency of the refer-ence tone oscillator 100–10,000

744T User Guide and Technical Information 2v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docum

744T User Guide and Technical Information 74v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

75Front Panel Button Shortcuts To speed navigation the 7-Series has numerous navigation “shortcuts”. For combinations, hold down the first identified k

744T User Guide and Technical Information 76v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

77Speci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 vi

744T User Guide and Technical Information 78v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

79Other LCD Display 202 x 32 pixels, extended temperature, backlit display Tone Oscillator 100 Hz–10 kHz, variable output, assigned to tracks or out

744T User Guide and Technical Information 80v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

81CE Declaration of Conformity According to ISO/IEC Guide 22 Sound Devices, LLC 300 Wengel Drive Reedsburg, WI 53959 USA declares that the product,

744T User Guide and Technical Information 82v. 2.67 Features and specifications are subject to change. Visit www.sounddevices.com for the latest docu

83Warranty and Technical Support Warranty & ServiceSound Devices, LLC warrants the 744T Recorder against defects in materials and workmanship for

3To select a file for playback: 1. Press and hold the File Viewer key to select a drive and folder (directory) for playback. The last file recorded

744T rev. 2.67 - Printed in U.S.A.