<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - audio from qemu guest suffers delay / pitch changes as of 5.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81824#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - audio from qemu guest suffers delay / pitch changes as of 5.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81824">bug 81824</a>
from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
<pre>which backend are you using ?
the emulated AC97 's 64 K buffer size of the guest is smaller than that of HDA
of your host
<a href="http://git.kernel.org/cgit/virt/kvm/mst/qemu.git/tree/audio/alsaaudio.c">http://git.kernel.org/cgit/virt/kvm/mst/qemu.git/tree/audio/alsaaudio.c</a>
the alsa backend is using 4096
<a href="http://git.kernel.org/cgit/virt/kvm/mst/qemu.git/tree/audio/paaudio.c">http://git.kernel.org/cgit/virt/kvm/mst/qemu.git/tree/audio/paaudio.c</a>
pa_stream_connect_playback (stream, dev, attr,
PA_STREAM_INTERPOLATE_TIMING
#ifdef PA_STREAM_ADJUST_LATENCY
|PA_STREAM_ADJUST_LATENCY
#endif
|PA_STREAM_AUTO_TIMING_UPDATE, NULL,
NULL);
} else {</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>