audioctl - audio device control command line interface
audioctl list-devices
audioctl show-device [-v] [-d device]
audioctl show-control [-v] [-d device] [control ...]
audioctl set-control [-v] [-d device] control value
audioctl save-controls [-d device] [-f] file
audioctl load-controls [-d device] file
The audioctl command is used to control various settings and features of
audio devices, including mixer settings such as playback volume and record
gain.
The audioctl command supports the following subcommands.
list-devices
List all the audio devices on the system.
show-device [-v] [-d device]
[control ... ]
Display an informational overview of device (or
the default device if not specified). If the -v option is specified,
then more detail will be displayed.
show-control [-v] [-d device]
Display the control settings for one or more
controls of a device (or the default device if not specified).
If no control is specified, then the settings for all controls will be
displayed. If the -v option is specified, then more detail will be
displayed.
set-control [-v] [-d device]
control value
Set the control settings for a control of a
device (or the default device if not specified) to value. If the
-v option is specified, then more verbose output be displayed.
save-controls [-f] [-d device]
file
Save all control settings of the device (or the
default device if not specified) to the named file. This subcommand
will not replace or modify an existing file unless -f (force) is
specified.
load-controls [-d device]
file
Load previously saved control settings from a file
into a device (or all audio devices if not specified).
AUDIODEV
The full path name of the default audio device to use if
one is not specified on the command line. If this variable is not set,
/dev/audio is used.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE
TYPE |
ATTRIBUTE VALUE |
| Interface Stability |
See below. |
The audioctl command and its subcommands are Committed. The
names of controls, their values, and device names are Uncommitted. The
display output is intended for human consumption, and is Not An Interface.
The format of the state files used by the save-controls and
load-controls subcommands is Committed Private.
audioplay(1), audiorecord(1), dsp(7I), mixer(7I),
attributes(5)