#9526 BLOC 1.5-F11: Recording audio does not work

[Zarro Boogs per Child]

#9526: Recording audio does not work
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           Reporter:  sayamindu     |       Owner:                                   
               Type:  defect        |      Status:  new                              
           Priority:  blocker       |   Milestone:  1.5-F11                          
          Component:  not assigned  |     Version:  Development build as of this date
         Resolution:                |    Keywords:                                   
        Next_action:  diagnose      |    Verified:  0                                
Deployment_affected:                |   Blockedby:                                   
           Blocking:  9527          |  
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Changes (by Quozl):

  * next_action:  never set => diagnose
  * version:  not specified => Development build as of this date


Comment:

 On os33, was unable to reproduce the unintelligible recording.  Need more
 detail on what made it unintelligible.

 On os33, was able to reproduce the complaint about the workaround in
 #9414.

 {{{
 ALSA lib pcm_dmix.c:949:(snd_pcm_dmix_open) \
 The dmix plugin supports only playback stream
 arecord: main:608: audio open error: \
 Invalid argument
 }}}

 Also fiddled with .asoundrc and
 Activities/TamTamMini.activity/common/Config.py per #9414 but did not end
 up learning much.

 Reproduced #9414 on os33.

 The .asoundrc workaround in #9414 seems to add a slight latency to
 TamTamMini keyboard playing, but I did not measure it.

 Config.py does show parameters used by TamTam to capture audio, and these
 parameters work if adjusted.  The following arecord command captured
 useful and accurate audio:

 {{{
 arecord -f S16_LE -t wav -r 44100 -c 2 -D hw:0,0 test.wav
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/9526#comment:3>
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