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AUDIOCTL(1) General Commands Manual AUDIOCTL(1) NAME audioctl - control audio device SYNOPSIS audioctl [-d device] [-p channel] [-n] -a audioctl [-d device] [-p channel] [-n] name ... audioctl [-d device] [-p channel] [-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 -p flag can be used to give a virtual channel to control, the default is a new channel. 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, for the channel 3 you can use audioctl -p 3 -w play.sample_rate=11025 To set all of the play parameters for CD-quality audio, you can use audioctl -p 3 -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 circumvented 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. NetBSD 8.0 January 27, 2002 NetBSD 8.0