M-AUDIO DMAN - Manual (Page 29)

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ADPCM - Provides 4:1 compression compared to 16-bit
PCM format. The compression means this format uses
less disk space but causes degradation in playback
quality.
m-Law - Provides 2:1 compression compared to PCM
format.
A-Law - Provides 2:1 compression compared to PCM
format.
Channels - Mono requires half the disk storage space as
stereo, and usually provides sufficient quality for voice
recordings.
Sample Rate (kHz) - Higher sample rates provide better
sound quality and require more disk storage space. Typical
sample rates are 11.025 kHz (for voice), 22.05 kHz (for
medium-fidelity), and 44.1 kHz (for high-fidelity CD quality
recording). 48 kHz is what some professional digital
recording systems use and offers the best fidelity of all,
although only a marginal amount better than using a 44.1
kHz sample rate.
Bits - Determines the resolution of the data. The higher the
resolution, the better the sound quality. Select 16-bit for
higher quality recording. Recording in 8-bit format can
sometimes cause distortion – or a hissing sound – during
playback. The Dither option in the Audio Input Control
panel may help reduce distortion caused by 8-bit recording.
The User-defined Audio Transport Button
The factory default application that runs when you press the
user-defined Audio Transport button is the Windows NOTEPAD.
To define some other application or utility to start up when you
click the user-defined Audio Transport button, follow these steps:
1. Open the CSACBAT1.INI file (located in \Windows) with
the DOS edit program, the Windows Notepad, or any
other text processing program.
2. Under the [APPLETS] category, insert the following lines:
UserAppPath=pathname
UserApp=filename