[pulseaudio-tickets] [PulseAudio] #848: Loud noise for pa_stream_flush()

[PulseAudio]

#848: Loud noise for pa_stream_flush()
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  Reporter:  mschwendt  |       Owner:  lennart                                 
      Type:  defect     |      Status:  new                                     
 Milestone:             |   Component:  daemon                                  
Resolution:             |    Keywords:  very loud short sound on stream flushing
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Comment(by coling):

 This relates to the flat volumes feature in PA. If you disable this
 (daemon.conf) the issue will likely be avoided.

 The problem comes mainly from the fact that adjusting mixer settings comes
 with no timing information or guarantees. Thus when we change the volume
 of the h/w back to it's "natural" level after a sound has finished
 playing, we cannot know for certain that the operation will happen at the
 exact moment the sound has actually finished. It is this lack of timing
 information on mixer changes that ultimately causes this (I believe).
 Details regarding this were asked on the alsa-devel mailing list not that
 long ago, but nothing solid has come from that as of yet I believe.

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Ticket URL: <http://pulseaudio.org/ticket/848#comment:4>
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