182 lines
4.4 KiB
Groff
182 lines
4.4 KiB
Groff
.\" Copyright (c) 1997
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.\" Mike Pritchard <mpp@FreeBSD.org>. All rights reserved.
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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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.\" 3. Neither the name of the author nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY MIKE PRITCHARD AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd June 2, 2014
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.Dt MIXER 8
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.Os
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.Sh NAME
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.Nm mixer
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.Nd set/display soundcard mixer values
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.Sh SYNOPSIS
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.Nm
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.Op Fl f Ar device
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.Op Fl s | S
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.Oo
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.Ar dev
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.Sm off
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.Oo
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.Op Cm + | -
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.Ar lvol
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.Op : Oo Cm + | - Oc Ar rvol
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.Oc
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.Oc
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.Sm on
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.Ar ...
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.Nm
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.Op Fl f Ar device
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.Op Fl s | S
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.Cm recsrc
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.Ar ...
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.Nm
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.Op Fl f Ar device
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.Op Fl s | S
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.Sm off
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.Bro
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.Cm ^ | + | - | =
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.Brc
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.Cm rec
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.Sm on
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.Ar rdev ...
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to set and display soundcard mixer device levels.
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It may
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also be used to start and stop recording from the soundcard.
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The list
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of mixer devices that may be modified are:
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.Bd -ragged -offset indent
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vol, bass, treble, synth, pcm, speaker, line, mic, cd, mix,
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pcm2, rec, igain, ogain, line1, line2, line3, dig1, dig2, dig3,
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phin, phout, video, radio, and monitor.
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.Ed
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.Pp
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Not all mixer devices are available.
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.Pp
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Without any arguments,
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.Nm
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displays the current settings for all supported devices, followed by information
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about the current recording input devices.
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If the
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.Ar dev
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argument is specified,
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.Nm
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displays only the value for that
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.Ar dev .
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.Pp
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To modify the mixer value
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.Ar dev ,
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the optional left and right channel settings of
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.Ar lvol Ns Op : Ns Ar rvol
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may be specified.
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The
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.Ar lvol
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and
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.Ar rvol
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arguments may be from 0 - 100.
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Omitting
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.Ar dev
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and including only the channel settings will change the main volume level.
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.Pp
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If the left or right channel settings are prefixed with
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.Cm +
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or
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.Cm - ,
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the value following will be used as a relative adjustment, modifying the
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current settings by the amount specified.
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.Pp
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If the
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.Fl s
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flag is used, the current mixer values will be displayed in a format suitable
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for use as the command-line arguments to a future invocation of
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.Nm
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(as above).
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.Pp
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The
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.Fl S
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flag provides the above output without mixing field separators.
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.Pp
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To change the recording device you use one of:
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.Bl -tag -width =rec -offset indent
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.It Cm ^rec
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toggles
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.Ar rdev
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of possible recording devices
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.It Cm +rec
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adds
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.Ar rdev
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to possible recording devices
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.It Cm -rec
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removes
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.Ar rdev
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from possible recording devices
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.It Cm =rec
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sets the recording device to
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.Ar rdev
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.El
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.Pp
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The above commands work on an internal mask.
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After all the options
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have been parsed, it will set then read the mask from the sound card.
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This will let you see EXACTLY what the soundcard is using for the
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recording device(s).
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.Pp
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The option recsrc will display the current recording devices.
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.Pp
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The option
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.Fl f
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.Ar device
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will open
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.Ar device
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as the mixer device.
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.Sh FILES
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.Bl -tag -width /dev/mixer -compact
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.It Pa /dev/mixer
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the default mixer device
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.El
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.Sh SEE ALSO
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.Xr cdcontrol 1 ,
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.Xr sound 4
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Fx 2.0.5 .
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.Sh AUTHORS
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.An -nosplit
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Original source by
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.An Craig Metz Aq Mt cmetz@thor.tjhsst.edu
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and
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.An Hannu Savolainen .
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Mostly rewritten by
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.An John-Mark Gurney Aq Mt jmg@FreeBSD.org .
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This
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manual page was written by
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.An Mike Pritchard Aq Mt mpp@FreeBSD.org .
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