[pulseaudio-tickets] [PulseAudio] #659: Pitch distortion on 5.1 setups until ALSA PCM is fiddled with.

[PulseAudio]

#659: Pitch distortion on 5.1 setups until ALSA PCM is fiddled with.
--------------------+-------------------------------------------------------
 Reporter:  coling  |       Owner:  lennart      
     Type:  defect  |      Status:  new          
Milestone:          |   Component:  module-alsa-*
 Keywords:          |  
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 On behalf of a Mandriva user (TPG):

 PulseAudio 0.9.18

 When pulse starts up and some audio played the pitch is distorted. This
 distortion can be fixed if an alsa mixer is used and the PCM element is
 altered in some capacity.

 During volume calculations the following debug is output:
 {{{
 D: alsa-sink.c: Requested volume: 0:  83% 1:  83% 2:  83% 3:  83% 4:  83%
 5:  83%
 D: alsa-sink.c: Got hardware volume: 0:  84% 1:  84% 2:  84% 3:  84% 4:
 63% 5:  63%
 D: alsa-sink.c: Calculated software volume: 0:  99% 1:  99% 2:  99% 3:
 99% 4: 132% 5: 132% (accurate-enough=no)
 }}}

 The pitch distortion does not occur when using a stereo card profile.

 The hardware is some form of VIA 8235. softvol is not loaded (or so it
 seems from the full output which will be attached)

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Ticket URL: <http://pulseaudio.org/ticket/659>
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