Apple Performa 6400/180 - Manual (Page 28)

Basics Sound - 26
Sound
The sound system supports 8-bit and 16-bit stereo sound
output and input. It can create sounds digitally and play the
sounds through the internal speakers or send the sound
signals through the sound output jacks.
Digitizing Sound
The 6400 and 6500 computers digitize and records sound as
16-bit samples. It can use two of these sampling rates—
11k, 22k, or 44k samples per second. It can record sound
from the following sources:
• Built-in microphone
• Microphone connected to the sound input jack
• Video input module
• Compact disc in the CD-ROM player