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:
-
-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.
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.
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.
nas(1),
auplay(1),
audial(1),
audemo(1),
autool(1)
Copyright 1993, 1994 Network Computing Devices, Inc.
Jim Fulton, Network Computing Devices, Inc.