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.Dd July 29, 2024 .Dt ASCAUDIO 4 mac68k .Os .Sh NAME .Nm ascaudio .Nd MAC68K Apple Sound Chip
q Tn ASC built-in audio. .Sh SYNOPSIS .Cd ascaudio* at obio? flags 0x00 .Cd audio* at audiobus? .Cd spkr* at audio? .Cd wsbell* at spkr? .Sh DESCRIPTION .Nm provides an audio device for the (Enchanced) Apple Sound Chip. It is implemented as an .Xr audio 4 device. .Sh CONFIGURATION The .Nm driver supports the following .Sy flags for use in .Xr config 1 files:
p
l -tag -offset indent -width Dv t Li 0x0 Pq Dv DEFQUALTY : 22257\^Hz Monaural playback.
t Li 0x1 Pq Dv LOWQUALITY : Half playback rate.
Monoaural, intended for machines with slower clock rates.
t Li 0x2 Pq Dv HIGHQUALITY : Best Quality supported by
.Tn ASC .
This would be stereo on equipped machines.
.El
.Sh BUGS
Recording only works on some machines as audio routing is required, yet not fully analyzed.
.Sh SEE ALSO
.Xr mac68k/asc 4 ,
.Xr audio 4 ,
.Xr spkr 4 ,
.Xr wsbell 4
Indexes created Sat Sep 20 22:09:52 GMT 2025