[pulseaudio-tickets] [Bug 72683] New: crackling noise when recording (had_intel, alc663)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72683

          Priority: medium
            Bug ID: 72683
                CC: lennart at poettering.net
          Assignee: pulseaudio-bugs at lists.freedesktop.org
           Summary: crackling noise when recording (had_intel, alc663)
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: martin.tlustos at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: alsa
           Product: PulseAudio

Created attachment 90729
  --> https://bugs.freedesktop.org/attachment.cgi?id=90729&action=edit
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.

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