Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

mixerctl(1) [netbsd man page]

MIXERCTL(1)						    BSD General Commands Manual 					       MIXERCTL(1)

mixerctl -- control audio mixing SYNOPSIS
mixerctl [-d file] [-n] [-v] -a mixerctl [-d file] [-n] [-v] name ... mixerctl [-d file] [-n] -w name=value ... mixerctl [-d file] [-n] -w name++ ... mixerctl [-d file] [-n] -w name-- ... mixerctl [-d file] [-n] -w name+=value ... mixerctl [-d file] [-n] -w name-=value ... DESCRIPTION
The mixerctl command displays or sets various audio system mixing variables. If a list of variables is present on the command line, then mixerctl prints the current value of those variables for the specified device. If the -a flag is specified, all variables for the device are printed. If the -w flag is specified, mixerctl attempts to set the specified variables to the given values. The -d flag can be used to give an alternative mixer device. The default is /dev/mixer. The -n flag suppresses printing of the variable name. The -v flag shows the possible values of enumeration and set valued variables. Enumerated values are shown in brackets (``[]'') and set val- ues are shown in curly braces (``{}''). The exact set of controls that can be manipulated depends on the mixer. The general format (in both getting and setting a value) is = value class can have values like inputs or outputs, indicating that the control affects the input or output of the mixer, respectively. name indi- cates what part of the mixer the control affects. Continuous mixer values, e.g., volume, have numeric values in the range 0-255. If value can be set for each channel independently, the values are printed separated by commas. Discrete mixer values, e.g., the recording source, have symbolic names. Depending on the mixer it may either be an enumeration or a set. The suffixes ++ and -- can be used to step through the values of a mixer control. For numeric controls, these operators increase or decrease, respectively, the value by an amount (the delta) suitable to make the control assume the next possible value. For binary controls, these operators toggle between on and off. The operators += and -= change the value of a mixer control by the indicated number of steps. ENVIRONMENT
MIXERDEVICE the mixer device to use. FILES
/dev/mixer mixer audio device /etc/mixerctl.conf mixer configuration file EXAMPLES
The command mixerctl -a -v can produce inputs.mic=0,0 volume inputs.mic.mute=off [ off on ],220 volume [ off on ] inputs.dac=220,220 volume inputs.dac.mute=off [ off on ] record.record=220,220 volume record.record.source=mic [ mic cd dac ] monitor.monitor=0 volume COMPATIBILITY
The old -f flag is still supported. This support will be removed eventually. SEE ALSO
audioctl(1), audio(4), mixerctl.conf(5), sysctl(8) HISTORY
The mixerctl command first appeared in NetBSD 1.3. BSD
August 15, 2008 BSD

Check Out this Related Man Page

mixerctl(1)                                                        User Commands                                                       mixerctl(1)

mixerctl - audio mixer control command line application SYNOPSIS
/usr/sbin/mixerctl [-a | -d dev] [-iv] [-e | -o] DESCRIPTION
Some audio devices support the audio mixer functionality. See mixer(7I) for a complete description of the audio mixer. The mixerctl command is used to control the mode of the audio mixer and to get information about the audio mixer and the audio device. See audio(7I) for details. OPTIONS
The following options are supported. If none are specified, option -i is assumed: -a The command applies to all audio devices. -d dev The dev argument specifies an alternate audio control device for the command to use. -e Enables the audio mixer function if the audio device supports it. If supported, the audio mixer may be enabled at any time. The command silently ignores the enable option if the audio mixer is already enabled. -i Prints the audio device type information for the device and indicates whether the audio device uses the audio mixer. If the device does use the audio mixer, this option displays the audio mixer's mode. -o Turns off the audio mixer function if the audio device supports it. If supported, the audio mixer may be turned off if only one process has the device opened with the O_RDWR flag, or, if two different processes have the device opened, one with the O_RDONLY flag and the other with the O_WRONLY flag. (See open(2).) The command silently ignores the disable option if the audio mixer function is already disabled. -v Verbose mode. Prints the audio_info_t structure for the device, along with the device type information. This option implies the -i option. ENVIRONMENT VARIABLES
AUDIODEV If the -d and -a options are not specified, the AUDIODEV environment variable is consulted. If set, AUDIODEV will contain the full path name of the user's default audio device. The default audio device will be converted into a control device, and then used. If the AUDIODEV variable is not set, /dev/audioctl is used. FILES
/dev/audioctl /dev/sound/{0...n}ctl ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |SPARC, x86 | +-----------------------------+-----------------------------+ |Availability |SUNWauda | +-----------------------------+-----------------------------+ |Stability Level |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
audioconvert(1), audioplay(1), audiorecord(1), open(2), attributes(5), usb_ac(7D), audio(7I), audio_support(7I), mixer(7I) SunOS 5.10 12 Mar 2001 mixerctl(1)
Man Page

Featured Tech Videos