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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.
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