smix(1) 							Linux System Manual							   smix(1)

NAME

       smix - A Simple LINUX Mixer Program

SYNOPSIS

       smix [-v] [-h] [-o file] [-i file] [-m file] [-s] [command(s)]

DESCRIPTION

       smix , a simple mixer program that reports or controls the Mixer settings of /dev/mixer (or the specific mixer device file specified by the
       "-m file" option) from the command line parameter(s).

       The commands are detailed below, capitals showing the minimum abbreviation allowed. Upper or lower case can be used on  the  command  line.
       All  Volume settings are in range 0-100 (0 min, 100 max), but these are scaled to the mixers actual range, hence set volume may be slightly
       different.

       To see what devices/channels the mixer is configured with and to get a command summary, use smix -h

       SHow or ALL
	      outputs the settings of the mixer. This is the default, if no command line parameters are given

       dev    outputs the current settings for the mixer device named "dev"

       dev N or L,R
	      sets mixer device 'dev' to volume N, or to separate left and right stereo volume L,R If device doesn't support stereo settings  then
	      max of L,R is used. The word off can be used instead of 0 and full can be used instead of 100.

       ALL N or L,R
	      sets all mixer devices to specified volume setting (see above).

       INput dev
	      set the DSP input to be 'dev' or 'NOne' to turn inputs off

       Verbose
	      makes the program output the settings after doing the commands

OPTIONS

       -h     show usage summary, which also lists the mixer devices and the possible input devices.

       -v     be verbose - outputs the results of commands. Same as Verbose above

       -i file
	      read commands from file

       -o file
	      divert standard output to file.

       -m file
	      use file instead of the default /dev/mixer . The file has to be a valid mixer device type.

       -s     causes  smix  to output mixer settings etc in a form that can be read by smix to cause the same settings to set. This can be used to
	      record the settings of all or part of the mixer into a file, change the settings, then get smix to reset the  original  settings	by
	      giving the file as an input file, see examples below.

       Use '-' as a filename to indicate standard input.

EXAMPLES

       smix   Displays the current mixer devices and their current settings.

       smix -m /dev/mixer1
	      Displays the devices and their current settings for /dev/mixer1

       smix input line1 line1 60 mic 0 show
	      sets input to line1, line1 volume to 60 and mic volume to 0 (off) and shows the total resultant mixer settings.

       smix line1 60,0 show
	      sets left line1 input to volume 60 and right line1 input to 0 (off) and shows the resultant output.

       smix -i /etc/mixer.default
	      set the mixer settings from smix commands in /etc/mixer.default .

       smix -i -
	      take  mixer  commands from stdin, with output to stdout. If stdin and stdout is the keyboard and display, then mixer commands can by
	      typed and executed interactively and control is retained of the mixer while smix is running.

       smix -s -o mixer.conf
	      record the current settings of the default mixer in file mixer.conf in a form that can be fed back in to smix.

       smix -i mixer.conf -o /dev/null
	      take the file saved, as above, and reset the mixer settings, without doing any output.

OPTIONAL CONFIGURATION FILES

       Three possible configuration files can be used: a LOCAL config file (usually in current directory), a HOME  config  file  in  user's  $HOME
       directory and a GLOBAL config file.

       All the siggen suite of programs are compiled with the names of the config files built in. By default the configuration files are:

       ./.siggen.conf
	      is the LOCAL config file.

       $HOME/.siggen.conf
	      is the HOME config file.

       /etc/siggen.conf
	      is the GLOBAL config file.

       smix -h
	      will indicate which config files will be searched for.

       The config files do not have to exist. If they exist and are readable by the program they are used, otherwise they are simply ignored.

       The  config  files  are	always searched for configuration values in the order LOCAL, HOME, GLOBAL. This allows a scheme where the sysadmin
       sets up default config values in the GLOBAL config file, but allows a user to set some or all different values in  their  own  HOME  config
       file, and to set yet more specific values when run from a particular directory.

       If  no  configuration  files  exist,  the  program provides builtin default values, and these values can be set by appropriate command line
       options and flags.

       See siggen.conf(5) for details of the configuration files.

       smix currently looks for configuration values MIXERFILE, VERBOSE.

       MIXERFILE
	      allows the name of the mixer device file to be changed from /dev/mixer

       VERBOSE
	      sets whether or not to run in verbose mode.

SEE ALSO

       siggen.conf(5)

       All the other mixer programs that float around the internet.

BUGS


COPYING

       Copyright 1995-2008 Jim Jackson

       The software described by this manual is covered by the GNU General Public License, Version 2, June 1991, issued by :

	      Free Software Foundation, Inc.,
	      675 Mass Ave,
	      Cambridge, MA 02139, USA

       Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this  permission  notice  are
       preserved on all copies.

       Permission  is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the
       entire resulting derived work is distributed under the terms of a permission notice identical to this one.

       Permission is granted to copy and distribute translations of this manual into another language, under the  above  conditions  for  modified
       versions, except that this permission notice may be included in translation instead of in the original English.

AUTHOR

       Jim Jackson

       Email: jj@franjam.org.uk

Release 2							    20 Feb 1998 							   smix(1)