There were no responses to this question I posted a few weeks ago, so I am reposting it.
I’m using Gstreamer (gst-launch) to obtain audio from pulse audio under Ubuntu, process it via LADSPA, and then send it to a DAC.
When I use pulsesrc I experience ever increasing latency that builds up to a several seconds over 10-20 minutes or so. I can tell because if I change volume (for example) that change does not appear in the audio output for some time.
When I switch to using alsasrc device=pulse the latency never develops. The rest of the pipeline is unchanged.
Debug output shows Gstreamer running at the correct rate. No errors are generated.
What might be causing this problem?
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