Sound Devices 722 and 744T

722/744T -Series Portable Digital Audio Recorders

The high-resolution 722 and 744T audio recorders advance the boundaries for compact, high performance, full-featured audio recorders. They are the essential replacement for digital and analog tape-based portable recorders replacing them with a far more powerful file-based digital recording devices Sound Devices 722 (2-Channel) and 744T (4-Channel & Timecode) Portable Digital Recorders . The two-track 722 and four-track 744T write and play audio files with bit depths of 24 or 16 bit, with sample rates from 44.1 to 192 kHz, including pull-up sample rates.

The 722 and 744T user interface places the operator first. Users with a fundamental background in audio can begin recording with them immediately. The learning curve is short, powerful, and accessible. With documentary and ENG mixing engineers in mind, the recorders are as small as practicable without compromising their usability. While the 722 and 744T are a very capable recorders alone, they excel when used in conjunction with a Sound Devices 442 or 302 mixer.

Both the 722 and 744T implement a no-compromise audio path with Sound Devices next gener Sound Devices 744T Output Panel ation microphone preamplifiers. Designed specifically for high-bandwidth, high bit-rate digital medium, these preamps set a new standard for linearity, distortion performance, and low-noise gain.

The 744T 's Ambient-supplied timecode implementation is the perfect tool for dual-system sound recording, for both over-the-shoulder and cart-based audio-for-picture production. Its temperature -compensated crystal is tuneable to very high accuracies (<0.2 ppm). The 744T has the stability to be the production's Masterclock.

The 7-Series recorders write to two recording media, hard drive and Compact Flash. These industry-standard volumes are easily sourced and user replaced. The 7-Series writes standard .wav, .bwf, and .mp3 audio files. Its on-board battery is a standard Sony-compatible L- or M-type Lithium Ion cell. The 722 and 744T easily interconnect with Windows and Mac OS computers for audio data transfer and backup.

7-Series Feature List

Analog I/O

722

744T

Two-channel balanced mic/line inputs using Sound Devices next generation microphone preamps

Channels 1 and 2 mic/line switchable on XLR connectors

48 V phantom on channels 1 and 2

Line level input adjustment in 0.1 dB increments

Adjustable high-pass filters on inputs, first pole in analogue

Analogue Peak limiters on channels 1 and 2

Channel 3 and 4 line-level only inputs on TA3 connectors

Two-channel, balanced mic/line level outputs of Bus 1 on TA3 connectors

Headphone output on 3.5-mm jack with level control

Headphone source selection for monitoring any input or track

Digital I/O

AES input, channels 1 and 2 on XLR

AES input channels 3 and 4 on XLR

AES3id (S/PDIF) input channels 1 and 2 on BNC

AES3id (S/PDIF) input channels 3 and 4 on BNC

AES3id (S/PDIF) output L/R (1) on BNC

AES3id (S/PDIF) output L/R (2) on BNC

Display/Metering/Control

Sunlight-viewable LED level metering, selectable among multiple sources

2-ch.

4-ch

Front panel, back-lit LCD viewable in all lighting conditions

Extended temperature range LCD display

PPM, VU or combination PPM/VU level metering

LED peak indication per channel

Data Storage

Internal HD, 2.5-inch, 40 GB, ATA interface, FAT32 volume, Sound Devices qualified

2.5-inch and 1.8-inch HD compatible internal drive mount

Compact Flash slot (type I, II, and micro drive compatible) for removable secondary recording medium

Recording to HD, CF, or mirror to both medium

File transfer between internal hard drive and CF

Record buffering, (10 seconds at 24/48 x 4 with 744T)

File Formats

Selectable track arming of 1 or 2 channels

Selectable track arming or 1, 2, or 4 channel recording

WAV format, uncompressed PCM audio

BWF format, mono or poly files, uncompressed PCM audio

24-bit or 16-bit (with or without dither)

Sampling rate selection of 32, 44.1, 48, 48.048, 88.2, 96, 96.096, 176.4, 192 kHz

MP3 encode and decode at 64, 128, 192, or 256, or 320 kb/s, stereo file

External Data Interface/Transfer/Control

IEEE1394a (FireWire 400) port for high-speed data transfer between local disks and computers

HD and CF medium appear as separate FAT32 volumes on computer desktop

Mac or Windows compatible

RJ-12 serial input and output for unit linking and future control/expansion

Time Code/Word Clock

Ultra-stable, temperature-compensated (<1 ppm) crystal clock generator

Metadata TC stamp in BWF file

User bit assignment and selection in setup menu

TC read and generate designed by Ambient

TC rates of 23.976, 24, 25, 29.97DF, 29.97, 30, 30DF

Word clock input and output

Word clock transferred over C.Link serial connection

Time code transferred over C.Link serial connection

Powering

Removable, rechargeable powering using Li-on battery

Compatible with Sony M and L mounts

10-18 VDC external input powers unit and charges onboard battery (built in 1 A LiON battery charger)

Internal and external voltage metering on LCD panel

Mechanical Construction

Aluminum and stainless steel construction for exceptional durability and light weight

Class-shattering low weight - 1.14kg with battery and hard drive

Class-shattering low weight - 1.25kg with battery and hard drive

Class-defining compact chassis:
without connectors - 42mm x 192.5mm x 112mm
with connectors - 42mm x 205mm x 112mm

Tested for the same environmental extremes as Sound Devices field mixers

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