[mythtv-commits] Ticket #9930: Distorted alsa-output on some soundcards

[MythTV]

#9930: Distorted alsa-output on some soundcards
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 Reporter:  mac20xx@…              |          Owner:  jyavenard
     Type:  Patch - Bug Fix        |         Status:  new
 Priority:  minor                  |      Milestone:  0.24.1
Component:  MythTV - Audio Output  |        Version:  0.24.1
 Severity:  medium                 |     Resolution:
 Keywords:  distorted alsa output  |  Ticket locked:  0
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Comment (by mac <mac20xx@…>):

 Replying to [comment:9 jyavenard]:
 > There is something else in your log that is puzzling:
 >
 > > 2011-07-22 10:02:47.387 ALSA: Hardware audio buffer cur: 256 need: 896
 max allowed: 256
 > > 2011-07-22 10:02:47.387 ALSA, Error: Unable to sufficiently increase
 ALSA hardware buffer size - underruns are likely
 >
 > That's to get 110kB of buffer, it shouldn't request 896kB of buffer,
 256kB is plenty... another bug there...

 I don't think that's a problem. Alsa first tries to get 500ms of buffer
 time and then tries to increase the buffer (echo >/proc/asound/...). If
 that fails mythtv throws the error message but I never had problems with
 buffer underruns. (The max. buffer time that could be allocated on the
 Terratec is about 140ms (16-bit stereo))

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Ticket URL: <http://code.mythtv.org/trac/ticket/9930#comment:10>
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