Bug 72683

Summary:	crackling noise when recording (hda_intel, alc663)
Product:	PulseAudio	Reporter:	Martin Tlustos <martin.tlustos>
Component:	alsa	Assignee:	pulseaudio-bugs
Status:	RESOLVED MOVED	QA Contact:	pulseaudio-bugs
Severity:	normal
Priority:	medium	CC:	lennart
Version:	unspecified
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Output alsa-info.sh

Description Martin Tlustos 2013-12-13 15:55:47 UTC

Created attachment 90729 [details]
Output alsa-info.sh

Recording directly with arecord works, but using pulseaudio (skype, audacity) has crackling noise.

Workaround is to disable timer based scheduling in /etc/pulse/default.pa
AND setting

default-fragments = 4
default-fragment-size-msec = 90 (or higher, lower still produces noise)

in daemon.conf. Total hw buffer size is 371 ms (according to pulseaudio -vvv > pulse.log)

Using parecord funnilly works.

Comment 1 Martin Tlustos 2013-12-13 15:57:07 UTC

Additional info can be found here (bug first reported to launchpad):
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1259070

Comment 2 Rodhos 2017-11-10 12:25:28 UTC

This bug still affects me in Ubuntu 17.10 when speking by Steam and recoring audio.

Comment 3 GitLab Migration User 2018-07-30 09:33:26 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/11.

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