|SOUND DEVICES 722 HIGH-RESOLUTION AUDIO RECORDER|
|722 Portable Digital Audio Recorder|
The two-channel 722 is a powerful file-based digital audio recorder. The super-compact device records and plays back audio to and from its internal 160 GB 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 from 64 kb/s to 320 kb/s are also supported.
The 722 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.
No other recorder on the market matches its size or feature set. In addition, its learning curve is quite short—powerful does not mean complicated. While the 722 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.
Its two recording media (hard drive and Compact Flash) are highly reliable, industry standard, and easily obtainable. The removable, rechargeable battery is a standard Sony-compatible Li-ion camcorder cell. The 722 interconnects with Windows and Mac OS computers for convenient data transfer and backup.
• Two-channels of Sound Devices next generation microphone preamps with phantom, limiters, and high-pass filters
Internal Data Path and Processing:
A/D, D/A Converters:
A/D Dynamic Range:
D/A Dynamic Range:
Frequency Res. Mic or Line:
Equivalent Input Noise:
THD + Noise:
Gain: (input dBu to -20 dBFS)
Input Clipping Level:
Mic Input Limiters:
Analog Line Output Clipping Level:
I/O – Digital:
Data Transfer / Control:
Dimensions and Weight:
For more information on this product, see the Sound Devices homepage.
|Calculating your available recording time |
If you are recording stereo, at the 16-bit 44.1 kHz resolution of CDs, figure that 1 GB of memory on a hard drive or a CF (Compact Flash card) gives you an hour and a half of recording time.
If you change the "word length" from 16-bit to 24-bit (to increase the dynamic range of the recording), 1 GB will give you an hour of recording time.
Doubling the sampling frequency to 88.2 kHz (or 96 kHz) to "increase the resolution" halves the available recording time to a half hour. Doubling it again to 176.4 kHz (or 192 kHz) cuts it in half again, to 15 minutes.
These times assume that a 2-track "stereo" recording is being made. A "mono" one-track recording doubles these times, a four-track recording halves them.
© 1997-2015 Posthorn Recordings
|Most recent revision January 1, 2015|