[pulseaudio-tickets] [PulseAudio] #423: pulse audio breaks the microphone recording on Intel ICH7/8/9 chipsets

[PulseAudio]

#423: pulse audio breaks the microphone recording on Intel ICH7/8/9 chipsets
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  Reporter:  mabawsa      |       Owner:  lennart                   
      Type:  defect       |      Status:  closed                    
  Priority:  high         |   Milestone:                            
 Component:  libpulse     |    Severity:  major                     
Resolution:  notourfault  |    Keywords:  Intel Microphone Recording
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Changes (by lennart):

  * status:  reopened => closed
  * resolution:  => notourfault


Comment:

 OK, as it appears some sound cards have an ADC that digitizes in a very
 low resolution only and they put that in the LSBs of the recorded PCM
 data. The effect of this is that software amplification needs to take
 place to make the signal useful to applications.

 PA has been supporting digital amplification easily. However this feature
 was not exposed in the UI interfaces. Hence this is mostly an UI issue to
 allow volume sliders to go beyond 100%. In fact gnome-volume-control has
 recently been fixed to allow just this.

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Ticket URL: <http://pulseaudio.org/ticket/423#comment:7>
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