auctl(1) - Linux man page
Name
auctl - control various audio server parametersSynopsys
auctl [-audio servername] [-q] [command...]Description
Options
The following options may be used with auctl:- -audio servername
- This option specifies the Network Audio System server on which the files should be played.
- -q
- This option indicates that no prompt should be given when reading commands from the standard input.
Commands
The following commands may be used with auctl:- help
- This command prints a list of the commands that may be given.
- set device id gain [=,+,-] percent
- With =, this command sets the gain on the device specified by id to the indicated percentage, or alters it by the given number of percentage points if + or - is used. If the id is a decimal number n, the nth device returned by the server (see auinfo) is used. Otherwise, id should be a hexidecimal number specifying the resource identifier of the desired device.
- set device id linemode = low
- This command sets the linemode of the device specified by id to the lower setting appropriate for microphones.
- set device id linemode = hi
- This command sets the linemode of the device specified by id to the higher setting appropriate for CD players.
- list device id gain
- This command lists the gain of the specified device in the form needed to set it.
- list device id linemode
- This command lists the line mode of the specified device in the form needed to set it.
- list device id
- This command lists the gain and line mode of the specified device.
- quit, exit, or ^D
- Either of these commands or an end of file causes the program to exit.
Environment Variables
The following environment variables are used by auctl:
- AUDIOSERVER
- This specifies the name of default audio server to contact if no name is explicitly given on the command line.
- DISPLAY
- This specifies the name of an X Window System display that should be assumed to also have a corresponding Network Audio System server.