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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - crackling noise when recording (had_intel, alc663)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72683">72683</a>
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<th>CC</th>
<td>lennart@poettering.net
</td>
</tr>
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>crackling noise when recording (had_intel, alc663)
</td>
</tr>
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<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Reporter</th>
<td>martin.tlustos@gmail.com
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>alsa
</td>
</tr>
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<th>Product</th>
<td>PulseAudio
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=90729" name="attach_90729" title="Output alsa-info.sh">attachment 90729</a> <a href="attachment.cgi?id=90729&action=edit" title="Output alsa-info.sh">[details]</a></span>
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.</pre>
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