auctl - control various audio server parameters
auctl [-audio servername] [-q] [command...]
The auctl program can be used to control various audio server parameters. It is typically used when connecting up new devices, or to set user preferences. If no command is specified on the program command line, auctl reads commands from the standard output. If the standard input and standard output are both attached to a terminal, an interactive prompt is provided.
The following options may be used with auctl:
The following commands may be used with auctl:
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.
The following environment variables are used by auctl:
DISPLAY This specifies the name of an X Window System display that should be assumed to also have a corresponding Network Audio System server.
nas(1) , auplay(1) , audial(1) , audemo(1) , autool(1)
Copyright 1993, 1994 Network Computing Devices, Inc.
Jim Fulton, Network Computing Devices, Inc.