[alsa-devel] Alsa-lib: Dmix slowptr latency behaviour

[Clemens Ladisch]

Matin Momin wrote:
>> arecord -D"dsp" -r48000  -c2 -fs32_le | aplay -D"dmix1"

To reduce the latency, reduce arecord's period size and/or aplay's
buffer size.

> Now, in the same configuration if I disable slowptr in dmix1, the
> delay comes down to 160 msecs, which corresponds exactly to buffer
> time (85 msecs).

Did you do multuple measurements?


Regards,
Clemens