Benutzeranleitung / Produktwartung 744T des Produzenten Panasonic
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7 4 4T High R esolution Digital Audio R ecorder with T ime Code User Guide and T echnical Information re v . 1 .04 Sound Devices, LL C 300 W engel Driv e • R eedsburg, WI • USA +1 (608) 524-0625 • fax: +1 (608) 524-0655 T oll-F ree: (800) 505-0625 www .
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Introduction 1 T able of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick Start Guide . . . . . . . . . . . . . . . . . . . . . .
7 4 4T User Guide and T echnical Information 2 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
Quick S tart Guide 3 Quick Start Guide The 744T is an extremely powerful and fl exible portable audio recor der . Before r ecording, familiarity with the product is essential. Several settings should be verifi ed or set based on individual recor ding needs.
7 4 4T User Guide and T echnical Information 4 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Routing Inputs to T racks Before r ecording, inputs must be assigned to tracks.
Quick S tart Guide 5 1. Press and hold the key to select the volume for playback. The default playback directory is the present volume being r ecorded. 2. Use the Multi-Function Controller , or the arrow soft-keys, to navigate thr ough the fi le dir ectory .
7 4 4T User Guide and T echnical Information 6 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. 1) Digital Input LEDs Indicates the presence of digital signal on the respective input.
Hardw are Descriptions 7 1 1) Charge LED Indicates the status of the onboard battery charger . Flashes when exter - nal power is connected and battery is charging; solid when battery is fully charged. 12) P ow er LED Indicates the 744T is powered and avail- able for operation.
7 4 4T User Guide and T echnical Information 8 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
Hardw are Descriptions 9 1) Batter y Le v el Indicator Shows voltage level of removable bat- tery or external power sources. External power overrides internal power when present. Graphical bar for r elative level and numeric indicator for precise volt- age measurement.
7 4 4T User Guide and T echnical Information 10 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. 10) External Media Space Status (space remaining/record ready) Not available on version 1.
Hardw are Descriptions 11 1) XLR Input 1/AES3 Input 1&2 Dual function input connection. Input type set with switch above. Active-bal- anced analog microphone- or line-level input for input 1. T ransformer -balanced two-channel AES3 input (1 and 2).
7 4 4T User Guide and T echnical Information 12 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. 1) Time Code Multi-Pin T ime code input and output on 5-pin LEMO ® connector .
Hardw are Descriptions 13 1) Security Slot Compatible with the Kensington Secu- rity Slot specifi cation. Useful for secur- ing the recor der to a fi xed object with a compatible computer lock. 2) Compact Flash Slot Insert Compact Flash medium with the label-side up.
7 4 4T User Guide and T echnical Information 14 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Input Setup and Control The 744T has four inputs and four recor d tracks. Inputs are selectable among analog or digital sour c- es.
Input Setup and Control 15 pressing the HDD key . If the inputs are in line level mode, phantom power will not activate fr om the shortcut keys and must be activated from the menus. Input Limiters (mic-level only) Microphone inputs 1 and 2 each have a limiter cir cuit designed to prevent input overload.
7 4 4T User Guide and T echnical Information 16 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Gain (sensitivity) for inputs 3 & 4 is controlled in the setup menu. Gain r esolution is in 0.
W ord Clock 17 arrows ar e accelerated. The more you pr ess or spin, the faster the delay setting will incr ement or decrement. Delay is not set until enter is pr essed. The amount of delay available is dependent on the sampling frequency in use. Sample F requency Maximum Amount of Dela y A v ailable (per input) 32, 44.
7 4 4T User Guide and T echnical Information 18 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. T o 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.
Input-to-T rack Routing 19 any combination of the f our inputs can be routed to any of the f our tracks Regardless of which tracks are assigned for r ecording, monophonic fi le numbering always starts with 1, i.e., if only track D is selected for recording in a monophonic .
7 4 4T User Guide and T echnical Information 20 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Outputs – Analog and Digital The 744T has two discrete output buses , the Master Output Bus and Output Bus 2.
Headphone Output 21 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, or post-recor d tracks.
7 4 4T User Guide and T echnical Information 22 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. HP Sources Description Tr a c k s A,B MS Tr a c k s C,D MS Stereo monitoring of discrete M (mid) and S (side) track pairs .
Metering 23 Metering The 744T features a 76 LED (4 x 19) output meter . The DSP-contr olled output meter provides a selec- tion of ballistics and lighting intensities.
7 4 4T User Guide and T echnical Information 24 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. 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.
Sample and Bit Rate 25 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 of f with the brightness key .
7 4 4T User Guide and T echnical Information 26 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Once a fi le is recorded its sample rate and bit depth can not be changed in the r ecorder .
Time Code 27 00:00:00:00 at power-up. When switching to r ecord r un from another mode, the internal generator will stop at the last number generated. A user-defi ned value can be jammed into the internal genera- tor from the jam menu.
7 4 4T User Guide and T echnical Information 28 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Jam V alue Press enter (tone key) or the contr oller button to jam the user-enter ed time code start value into the internal generator .
File Formats 29 Audio File Formats The 744T recor ds audio to industry-standard fi le formats—W indows W ave (W A V), Broadcast W ave (BWF , monaural and polyphonic) and MPEG Layer 3 (MP3). W A V / BWF The 744T adheres to the AES-31 BWF fi le specifi cation.
7 4 4T User Guide and T echnical Information 30 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Recording The largest, most easily accessed contr ol on the 744T is its recor d key .
Storage Medium 31 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 .
7 4 4T User Guide and T echnical Information 32 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. When selected from the setup menu, the r epair utility will scan the drive for problems, r eport the number of errors and corr ect the errors.
Storage Medium 33 requir e specifi c electronics knowledge, Sound Devices strongly r ecommends drive r eplacement be performed by a qualifi ed technician using proper ESD precautions. Drive r eplacement done by a qualifi ed technician has no warranty implications.
7 4 4T User Guide and T echnical Information 34 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. After recording is stopped, it can take several seconds for the 744T to fi nish “housekeeping” on CF .
File Management 35 T ake Numbers T ake numbers ar e four-digit integers between 000 1 and 9999 , starting with the letter “T”. T ake numbers increase by one each time a new fi le is generated. T ake numbers auto-incr ement, although the take number can be overridden and a new take number can be selected selected in the setup menu.
7 4 4T User Guide and T echnical Information 36 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
File Management 37 Automatic Flag Clearing The 744T can be set to clear the fl ag bit of copied fi les automatically . When enabled in the Fi le : Co py Fl ag Con tro l menu, all fi les copied internally by the 744T , but not via FireW ire, will have their fl ag bits cleared on the original fi le.
7 4 4T User Guide and T echnical Information 38 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. size maximums of 650 MB, 1 GB, 2 GB, and 4 GB. The 650 MB size allows the user to break an audio program into CD-R sized fi les for backup to inexpensive CD-R medium.
P ow ering 39 CompactFlash media must be present in the 744T upon Fir eW ire connection to be pr operly mounted by the host computer . CF media may not be “hot-swapped” after mounting—directory corruption may occur .
7 4 4T User Guide and T echnical Information 40 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. The voltage level of the source powering the unit is shows on the LCD ( ).
Firmw are 41 Firmware Upgrades The 744T uses upgradable EEPROM (electrically erasable programmable r ead-only memory) to hold the unit’s operating system software, or fi rmware. Firmwar e is the source code which contr ols all aspects of the device, including: menu options, signal routing, signal pr ocessing, LED’s, controls, and data ports.
7 4 4T User Guide and T echnical Information 42 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Setup Menu Presets Presets ar e useful shortcuts to speed setting the numerous parameters available in the setup menu.
Setup Menu 43 P arameter Factory Preset Film Preset Reporter Preset Music Preset Line Output Source T r C/D T r C/D T r C/D T r C/D Line Output Attenuation 0 0 0 0 HPMon1 inputs1/2 inputs1/2 inputs1/2.
7 4 4T User Guide and T echnical Information 44 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Setup Menu The setup menu controls a wide range of parameters for the 744T , including all audio r outing, recor ding settings, and time code options.
Setup Menu 45 # Setup Name Setup Description Setup P arameters 11 Rec: Timer Stop Set a specific time/date to stop record- ing. May be used with or without the Rec: Timer Star t. May be set bef ore the Timer Star t time to temporarily stop recording and then resume recording with Timer Star t.
7 4 4T User Guide and T echnical Information 46 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. # Setup Name Setup Description Setup P arameters 35 File: Marker Mode Enab les the user to set cue points on the fly while recording by pressing the record ke y .
Setup Menu 47 # Setup Name Setup Description Setup P arameters 42 Time Code: Frame Rate Sets the time code frame r ate. All com- mon time code frame rates are a v ailable .
7 4 4T User Guide and T echnical Information 48 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. # Setup Name Setup Description Setup P arameters 48 Output 2 L,R: Source Selects the signal source for output b us 2 sent to digital output bus 2.
Setup Menu 49 # Setup Name Setup Description Setup P arameters 60 HP: Fa v orite Mode Selects the audio source monitored when the Multi-Function Controller is pressed during recording or playbac k.
7 4 4T User Guide and T echnical Information 50 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
Specifi cations 51 Speci fi cations System Sampling Frequency internal: 32, 44.1, 48, 48.048, 88.2, 96, 96.096, 176.4, 192 kHz e xter nal: 32–192 kHz via word clock input Internal Data P ath and Processing 32 bit, 192 dB dynamic range A/D , D/A Con verters 24 bit, 192 kHz sample rate maximum.
7 4 4T User Guide and T echnical Information 52 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Inputs/Outputs – Digital AES3-id 75 ohm, 0.5 V p-p , S/PDIF compatib le with RCA adapter Digital Storage Internal hard drive A T A-5 interface 1.
Specifi cations 53 Connector Pin Assignments Each connector type, electrical characteristics, and pin assignment is shown below . Connector Pin Assignments Notes XLR (Analog Inputs) 1 – ground 2 .
7 4 4T User Guide and T echnical Information 54 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
Recording Time Calculation 55 MP3 Compressed Record Time in Hours MP3 Data Rate (bit depth/sample rate), stereo trac k 64 kb/s (0.47 MB/min) 96 kb/s (0.70 MB/min) 128 kb/s (0.94 MB/min) 160 kb/s (1.17 MB/min) 192 kb/s (1.40 MB/min) 256 kb/s (1.86 MB/min) 320 kb/s (2.
7 4 4T User Guide and T echnical Information 56 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
K e yboard Shor tcuts 57 Menu Navigation Shortcuts T o speed navigation the 744T has numer ous navigation “shortcuts”. The following is a complete list.
7 4 4T User Guide and T echnical Information 58 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation. Glossary of Terms daily folder a director y generated b y the recorder each calendar da y .
W arranty and Support 59 Warranty and Technical Support W arranty 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 r etail purchase. This is a non-trans- ferable warranty that extends only to the original purchaser .
7 4 4T User Guide and T echnical Information 60 firmware v . 1.04 F eatures and specifications are subject to change. Visit www .sounddevices.com f or the latest documentation.
61 Notes.
744T re v . 1.04.
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