alsa-delay (1) Linux Manual Page

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)

See Also

alsaloop(1) amixer(1) alsamixer(1)