ASCAUDIO(4) Device Drivers Manual (mac68k) ASCAUDIO(4)

ascaudioMAC68K Apple Sound Chip (ASC) built-in audio.

ascaudio* at obio? flags 0x00
audio* at audiobus?
spkr* at audio?
wsbell* at spkr?

ascaudio provides an audio device for the (Enchanced) Apple Sound Chip. It is implemented as an audio(4) device.

The ascaudio driver supports the following for use in config(1) files:

(DEFQUALTY):
22257Hz Monaural playback.
(LOWQUALITY):
Half playback rate. Monoaural, intended for machines with slower clock rates.
(HIGHQUALITY):
Best Quality supported by ASC. This would be stereo on equipped machines.

Recording only works on some machines as audio routing is required, yet not fully analyzed.

mac68k/asc(4), audio(4), spkr(4), wsbell(4)

July 29, 2024 NetBSD 10.99