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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - periodic audio skips with Intel HDA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49608#c36">Comment # 36</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - periodic audio skips with Intel HDA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49608">bug 49608</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>(In reply to rkfg from <a href="show_bug.cgi?id=49608#c35">comment #35</a>)
<span class="quote">> When I start PA without tsched=0, it's ALSA setup is weird:
> </span >
<span class="quote">> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: rate
> : 44100
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: exact
> rate : 44100 (44100/1)
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: msbits
> : 16
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
> buffer_size : 88192
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
> period_size : 44096
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
> period_time : 999909
> Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
>
>
> Why does period size lack 4 bytes to be exactly 1 second long?</span >
<a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=5f1545bc45a33361d6bb2fb44af7c35bcd733b9d">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=5f1545bc45a33361d6bb2fb44af7c35bcd733b9d</a>
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+ 128);
+ snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
+ 128);
<a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=103884a351a221553095c509a1dbbbf7d4fd9b05">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_intel.c?id=103884a351a221553095c509a1dbbbf7d4fd9b05</a></pre>
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