[pulseaudio-discuss] X-Fi Surround USB 5.1 crackling noise

Thomas Martitz kugel at rockbox.org
Sat Nov 28 05:32:02 PST 2015


I'm writing because I suffer from intermittent cackling noise on my X-Fi 
Surround USB 5.1 sound card. I've found that it's long known[1].

I found that I can fix the noise by disabling realtime sceduling. So I 
my daemon.conf looks like this:

cat ~/.config/pulse/daemon.conf
default-sample-rate = 48000
alternate-sample-rate = 44100
default-sample-format = s16le
realtime-scheduling = no

Does that ring a bell to anyone? And what are expected drawbacks from 
disabling this?

Best gerards.

[1]: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1051665

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