The Digidesign Sound Drivers work in conjunction with Sound Manager. If a particular piece of hardware or software doesn't utilize Sound Manager, such as the Apple CD Player, then the Digidesign Drivers can't do their job!

estion:

Where is the audio signal generated?

Answer:

The sound for Red Book** audio discs is created by a Digital to Analog
converter in the CD-ROM drive.



Question:

How does sound get routed to the speaker on an internal CD-ROM drive?*


Answer:

The internal CD-ROM drives's audio output is connected to the logic
board. That circuit is passed through the sound chip, and is then
output through the regular sound output architecture. No additional
processor load is incurred during the trip through the sound chip. This
analog signal is then passed into the sound chip, converted to digital
data, manipulated, converted to an analog signal, and passed directly
to the internal speaker(s) as a monaural signal or to the speaker jack
as a stereo signal.

Question:

Can the use (or non-use) of QuickTime, QuickTime PowerPlug, MultiMedia
Tuner, Sound Manager, the Sound control panel, or virtual memory make a
difference in the quality of audio CD playthrough?


Answer:

No, because those software components and variables do not have a
function in audio CD-ROM playback.