128 lines
3.4 KiB
Groff
128 lines
3.4 KiB
Groff
.\" $NetBSD: audiocfg.1,v 1.5.2.1 2019/09/28 07:34:50 martin Exp $
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.\"
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.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Thomas Klausner.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd May 8, 2019
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.Dt AUDIOCFG 1
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.Os
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.Sh NAME
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.Nm audiocfg
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.Nd configure default audio device
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.Sh SYNOPSIS
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.Nm
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.Cm list
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.Op Ar index
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.Nm
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.Cm default
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.Ar index
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.Nm
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.Cm set
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.Ar index
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.Ar direction
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.Ar encoding
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.Ar precision
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.Ar channels
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.Ar sample_rate
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.Nm
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.Cm test
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.Ar index
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.Sh DESCRIPTION
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The
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.Nm
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utility helps maintaining the audio and mixer device symlinks.
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.Pp
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Run with
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.Dq Cm list ,
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it lists the available audio devices and shows the currently selected
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default audio device.
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.Pp
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Run with
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.Dq Cm set ,
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it sets the hardware format.
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The
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.Ar direction
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is represented by either of 'p' (playback) or 'r' (record), or both of them.
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This indicates the direction you want to set.
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The remaining parameters
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.Ar encoding ,
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.Ar precision ,
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.Ar channels ,
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and
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.Ar sample_rate
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indicate the hardware format you want to set.
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These parameters must be selected from the candidates displayed by
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.Nm
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.Cm list .
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.Pp
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Called with
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.Dq Cm test ,
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it plays a tone of 2 seconds for each channel of the device with the index
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.Ar index .
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Called with
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.Dq Cm default ,
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it sets the default audio device to the one with the index
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.Ar index .
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.Pp
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.Nm
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needs access to
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.Pa /dev/drvctl
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and write access to
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.Pa /dev
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(when used with
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.Dq Cm default )
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to work.
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.Sh FILES
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.Bl -tag -width 10n
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.It Pa /dev/audio
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Symlink to default audio device.
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.It Pa /dev/audio[0-9]*
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Available audio devices.
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.It Pa /dev/audioctl
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Symlink to default audio control device.
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.It Pa /dev/audioctl[0-9]*
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Available audio control devices.
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.It Pa /dev/drvctl
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Used for finding the corresponding audio driver to an audio device.
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.It Pa /dev/mixer
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Symlink to default mixer device.
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.It Pa /dev/mixer[0-9]*
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Available mixer devices.
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.It Pa /dev/sound
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Symlink to default audio device (for the difference to
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.Pa /dev/audio ,
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see
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.Xr audio 4 ) .
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.It Pa /dev/sound[0-9]*
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Available audio devices.
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.El
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.Sh SEE ALSO
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.Xr audioplay 1 ,
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.Xr audiorecord 1 ,
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.Xr audio 4 ,
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.Xr drvctl 8
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