1.\" Copyright (c) 1997 2.\" Mike Pritchard <mpp@FreeBSD.ORG>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the author nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY MIKE PRITCHARD AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd March 14, 2008 31.Dt MIXER 8 32.Os 33.Sh NAME 34.Nm mixer 35.Nd set/display soundcard mixer values 36.Sh SYNOPSIS 37.Nm 38.Op Fl f Ar device 39.Op Fl s | S 40.Oo 41.Ar dev 42.Sm off 43.Oo 44.Op Cm + | - 45.Ar lvol 46.Op : Oo Cm + | - Oc Ar rvol 47.Oc 48.Oc 49.Sm on 50.Ar ... 51.Nm 52.Op Fl f Ar device 53.Op Fl s | S 54.Cm recsrc 55.Ar ... 56.Nm 57.Op Fl f Ar device 58.Op Fl s | S 59.Sm off 60.Bro 61.Cm ^ | + | - | = 62.Brc 63.Cm rec 64.Sm on 65.Ar rdev ... 66.Sh DESCRIPTION 67The 68.Nm 69utility is used to set and display soundcard mixer device levels. 70It may 71also be used to start and stop recording from the soundcard. 72The list 73of mixer devices that may be modified are: 74.Pp 75.Bd -ragged -offset indent 76vol, bass, treble, synth, pcm, speaker, line, mic, cd, mix, 77pcm2, rec, igain, ogain, line1, line2, line3, dig1, dig2, dig3, 78phin, phout, video, radio, and monitor. 79.Ed 80.Pp 81Not all mixer devices are available. 82.Pp 83Without any arguments, 84.Nm 85displays the current settings for all supported devices, followed by information 86about the current recording input devices. 87If the 88.Ar dev 89argument is specified, 90.Nm 91displays only the value for that 92.Ar dev . 93.Pp 94To modify the mixer value 95.Ar dev , 96the optional left and right channel settings of 97.Ar lvol Ns Op : Ns Ar rvol 98may be specified. 99The 100.Ar lvol 101and 102.Ar rvol 103arguments may be from 0 - 100. 104Omitting 105.Ar dev 106and including only the channel settings will change the main volume level. 107.Pp 108If the left or right channel settings are prefixed with 109.Cm + 110or 111.Cm - , 112the value following will be used as a relative adjustment, modifying the 113current settings by the amount specified. 114.Pp 115If the 116.Fl s 117flag is used, the current mixer values will be displayed in a format suitable 118for use as the command-line arguments to a future invocation of 119.Nm 120(as above). 121.Pp 122The 123.Fl S 124flag provides the above output without mixing field separators. 125.Pp 126To change the recording device you use one of: 127.Bl -tag -width =rec -offset indent 128.It Cm ^rec 129toggles 130.Ar rdev 131of possible recording devices 132.It Cm +rec 133adds 134.Ar rdev 135to possible recording devices 136.It Cm -rec 137removes 138.Ar rdev 139from possible recording devices 140.It Cm =rec 141sets the recording device to 142.Ar rdev 143.El 144.Pp 145The above commands work on an internal mask. 146After all the options 147have been parsed, it will set then read the mask from the sound card. 148This will let you see EXACTLY what the soundcard is using for the 149recording device(s). 150.Pp 151The option recsrc will display the current recording devices. 152.Pp 153The option 154.Fl f 155.Ar device 156will open 157.Ar device 158as the mixer device. 159.Sh FILES 160.Bl -tag -width /dev/mixer -compact 161.It Pa /dev/mixer 162the default mixer device 163.El 164.Sh SEE ALSO 165.Xr cdcontrol 1 166.Sh HISTORY 167The 168.Nm 169utility first appeared in 170.Fx 2.0.5 . 171.Sh AUTHORS 172.An -nosplit 173Original source by 174.An Craig Metz Aq cmetz@thor.tjhsst.edu 175and 176.An Hannu Savolainen . 177Mostly rewritten by 178.An John-Mark Gurney Aq jmg@FreeBSD.org . 179This 180manual page was written by 181.An Mike Pritchard Aq mpp@FreeBSD.org . 182