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Internal Speakers
The computer has two internal speakers, one on either side of the keyboard. The computer turns off the
sound signals to the speakers when an external device is actively connected to the sound output jack and
during power management.
Digitizing Sound
The sound circuitry digitizes and records sound as 44.1 kHz 16-bit samples. If a sound sampled at a lower
rate on another computer is played as output, the Sound Manager transparently upsamples the sound to
44.1 kHz prior to outputting the audio to the sound circuitry.
When recording sound from a microphone, applications that may be affected by feedback should disable
sound play-through by calling the Sound Manager functions.
Sound System 51
Legacy Document | 2003-03-01 | © 2003 Apple Computer, Inc. All Rights Reserved.
CHAPTER 3
Devices and Ports