alsa-delay (1) - Linux Manuals

alsa-delay: a command to (re)initialize sound hardware

NAME

alsadelay - a command to (re)initialize sound hardware

SYNOPSIS

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

DESCRIPTION

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.

OPTIONS

--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.

OPTIONS (for alsaloop daemon)

--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.

NOTE

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)