audioctl(1) [netbsd man page]
AUDIOCTL(1) BSD General Commands Manual AUDIOCTL(1) NAME
audioctl -- control audio device SYNOPSIS
audioctl [-d device] [-n] -a audioctl [-d device] [-n] name ... audioctl [-d device] [-n] -w name=value ... DESCRIPTION
The audioctl command displays or sets various audio system driver variables. If a list of variables is present on the command line, then audioctl 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 audioctl attempts to set the specified variables to the given values. The -d flag can be used to give an alternative audio control device, the default is /dev/audioctl0. The -n flag suppresses printing of the variable name. ENVIRONMENT
AUDIOCTLDEVICE the audio control device to use. FILES
/dev/audio0 audio I/O device (resets on open) /dev/audioctl0 audio control device /dev/sound0 audio I/O device (does not reset on open) EXAMPLES
To set the playing sampling rate to 11025, you can use audioctl -w play.sample_rate=11025 To set all of the play parameters for CD-quality audio, you can use audioctl -w play=44100,2,16,slinear_le Note that many of the variables that can be inspected and changed with audioctl are reset when /dev/audio0 is opened. This can be circum- vented by using /dev/sound0 instead. COMPATIBILITY
The old -f flag is still supported. This support will be removed eventually. SEE ALSO
audioplay(1), audiorecord(1), mixerctl(1), audio(4), sysctl(8) HISTORY
The audioctl command first appeared in NetBSD 1.3. BSD
January 27, 2002 BSD
Check Out this Related Man Page
mixerctl(1) User Commands mixerctl(1) NAME
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)