.\"	$NetBSD: ascaudio.4,v 1.2 2024/08/01 14:59:38 uwe Exp $
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.Dd July 29, 2024
.Dt ASCAUDIO 4 mac68k
.Os
.Sh NAME
.Nm ascaudio
.Nd MAC68K Apple Sound Chip
.Pq 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:
.Pp
.Bl -tag -offset indent -width Dv
.It Li 0x0 Pq Dv DEFQUALTY :
22257\^Hz Monaural playback.
.It Li 0x1 Pq Dv LOWQUALITY :
Half playback rate.
Monoaural, intended for machines with slower clock rates.
.It 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