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ALSA-DELAY(1) FreeBSD General Commands Manual ALSA-DELAY(1)

alsadelay - a command to (re)initialize sound hardware

alsa-delay [options] requested_delay_in_ms [output_card[,device]]

alsa-delay is a command-line utility to setup an audio delay. The snd-aloop ALSA driver is used to send all PCM streams back to the user space and the alsaloop utility is used to send this stream to a real hardware.

The parameter output_card is ALSA card index (number) or string card identifier. The parameter device is ALSA device number.

Use aplay -l to list available cards and devices.

--h,--help
Print help.
--q,--quiet
Quiet mode.
--y,--yes
Do not ask any questions - answer is always yes.
--c,--clean
Clean temporary directory.
--r,--remove
Remove the alsa-delay config modifications (modprobe, pulse-audio).
--tmpdir=<DIR>
Set temporary directory.

--pdevice=<DEV>
Force playback device.
--cdevice=<DEV>
Force capture device.
--pctl=<DEV>
Force playback control device.
--cctl=<DEV>
Force capture control device.
--one=<ARG>
Pass this argument to last thread.
--arg=<ARG>
Pass this argument to all threads.
--mix=<ARG>
Redirect ALSA mixer controls to OSS mixer (default is Master).
--pa
Redirect pulse-audio to alsaloop.

For devices, the string %s is replaced with the card index and second string %s is replaced with the device index and third string %s is replaced the substream index (0-7).

Example: hw:%s,%s,%s (card, device, substream)

alsaloop(1) amixer(1) alsamixer(1)
6 Jane 2016

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