[pulseaudio-discuss] sound cracks when watching youtube videos

[Julian Sikorski]

Hello,

I have recently begun noticing relatively frequent sound cracks when
watching youtube videos (firefox-39.0-8.fc22.x86_64,
flash-plugin-11.2.202.491-release.x86_64 - this is on Fedora 22).
Pulseaudio verbose output seems to show underrun when this happens:

I: [alsa-sink-ALC892 Analog] alsa-sink.c: Underrun!
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Increasing minimal latency to
2,00 ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 20,00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=349272
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=87760
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 20,00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=349272
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=87760
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Scheduling delay of 13,85 ms >
10,00 ms, you might want to investigate this to improve latency...

Is there anything I could do to stop these from happening, respectively
investigate where the issue is coming from? It seems it is relatively
recent.

Best regards,
Julian