xref: /dragonfly/usr.sbin/mixer/mixer.8 (revision 37de577a) 
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2.\"	Mike Pritchard <mpp@FreeBSD.org>.  All rights reserved.
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28.\" $FreeBSD: head/usr.sbin/mixer/mixer.8 267668 2014-06-20 09:57:27Z bapt $
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30.Dd January 11, 2015
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.Bd -ragged -offset indent
75vol, bass, treble, synth, pcm, speaker, line, mic, cd, mix,
76pcm2, rec, igain, ogain, line1, line2, line3, dig1, dig2, dig3,
77phin, phout, video, radio, and monitor.
78.Ed
79.Pp
80Not all mixer devices are available.
81.Pp
82Without any arguments,
83.Nm
84displays the current settings for all supported devices, followed by information
85about the current recording input devices.
86If the
87.Ar dev
88argument is specified,
89.Nm
90displays only the value for that
91.Ar dev .
92.Pp
93To modify the mixer value
94.Ar dev ,
95the optional left and right channel settings of
96.Ar lvol Ns Op : Ns Ar rvol
97may be specified.
98The
99.Ar lvol
100and
101.Ar rvol
102arguments may be from 0 - 100.
103Omitting
104.Ar dev
105and including only the channel settings will change the main volume level.
106.Pp
107If the left or right channel settings are prefixed with
108.Cm +
109or
110.Cm - ,
111the value following will be used as a relative adjustment, modifying the
112current settings by the amount specified.
113.Pp
114If the
115.Fl s
116flag is used, the current mixer values will be displayed in a format suitable
117for use as the command-line arguments to a future invocation of
118.Nm
119(as above).
120.Pp
121The
122.Fl S
123flag provides the above output without mixing field separators.
124.Pp
125To change the recording device you use one of:
126.Bl -tag -width =rec -offset indent
127.It Cm ^rec
128toggles
129.Ar rdev
130of possible recording devices
131.It Cm +rec
132adds
133.Ar rdev
134to possible recording devices
135.It Cm -rec
136removes
137.Ar rdev
138from possible recording devices
139.It Cm =rec
140sets the recording device to
141.Ar rdev
142.El
143.Pp
144The above commands work on an internal mask.
145After all the options
146have been parsed, it will set then read the mask from the sound card.
147This will let you see EXACTLY what the soundcard is using for the
148recording device(s).
149.Pp
150The option recsrc will display the current recording devices.
151.Pp
152The option
153.Fl f
154.Ar device
155will open
156.Ar device
157as the mixer device.
158.Sh FILES
159.Bl -tag -width /dev/mixer -compact
160.It Pa /dev/mixer
161the default mixer device
162.El
163.Sh SEE ALSO
164.Xr cdcontrol 1 ,
165.Xr sound 4
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 Mt cmetz@thor.tjhsst.edu
175and
176.An Hannu Savolainen .
177Mostly rewritten by
178.An John-Mark Gurney Aq Mt jmg@FreeBSD.org .
179This
180manual page was written by
181.An Mike Pritchard Aq Mt mpp@FreeBSD.org .
182