MIXERCTL(1) | General Commands Manual | MIXERCTL(1) |
mixerctl
— control
audio mixing
mixerctl |
[-anv ] [-f
file] |
mixerctl |
[-nv ] [-f
file] name ... |
mixerctl |
[-qt ] [-f
file] name ... |
mixerctl |
[-q ] [-f
file]
name=value ... |
The mixerctl
command displays or sets
various audio system mixing variables. If a list of variables is present on
the command line, mixerctl
prints the current value
of those variables for the specified device. Variables can also be set at
system startup using the configuration file
mixerctl.conf(5).
The options are as follows:
-a
mixerctl
.-f
file-n
-q
-t
-v
The exact set of controls that can be manipulated depends on the mixer. The general format (in both getting and setting a value) is:
The class can have values like “inputs” or “outputs”, indicating that the control affects the input or output, respectively, to the mixer. The name indicates what part of the mixer the control affects. Continuous mixer values, e.g. volume, have numeric values in the range 0-255. If value can be set for each channel independently, the values are printed separated by commas. Discrete mixer values, e.g. the recording source, have symbolic names.
Variables may take one of three types, again dependent on the mixer:
+
’ or
‘-
’ to denote an increase or
decrease, respectively.MIXERDEVICE
mixerctl
configuration file.Show possible values for all mixer variables, and their current settings:
$ mixerctl -av inputs.mic=0,0 volume inputs.mic.mute=off [ off on ] inputs.cd=220,220 volume inputs.cd.mute=off [ off on ] inputs.dac=220,220 volume inputs.dac.mute=off [ off on ] record.record=220,220 volume record.record.source=mic [ mic cd dac ] monitor.monitor=0 volume
Toggle inputs.dac.mute:
$ mixerctl -t inputs.dac.mute inputs.dac.mute: off -> on $ mixerctl inputs.dac.mute=toggle inputs.dac.mute: on -> off
aucat(1), audioctl(1), cdio(1), audio(4), mixerctl.conf(5), sysctl(8)
The mixerctl
command first appeared in
OpenBSD 2.4.
July 30, 2018 | OpenBSD-6.4 |