#9949 NORM 10.1.2: Recording no smoothly while do record test in sugar

[Zarro Boogs per Child]

#9949: Recording no smoothly while do record test in sugar
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           Reporter:  Andy Pei         |       Owner:  dsd                               
               Type:  defect           |      Status:  reopened                          
           Priority:  normal           |   Milestone:  10.1.2                            
          Component:  record-activity  |     Version:  1.5 Software Build os64 aka 10.1.0
         Resolution:                   |    Keywords:  ftos206                           
        Next_action:  diagnose         |    Verified:  0                                 
Deployment_affected:                   |   Blockedby:                                    
           Blocking:  10229            |  
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Changes (by Quozl):

  * next_action:  test in build => diagnose


Comment:

 Tested on XO-1.5 mass production hardware, with os206, with Record-84.
 Tested on XO-1.5 C3, with os206, with Record-83.
 Tested on XO-1 mass production hardware, with os301, with Record-83.

 Procedure:
  * start Record, select Audio tab, begin recording,
  * speak displayed remaining time down to 30 seconds,
  * stop recording,
  * playback and listen carefully,
  * transfer file to desktop system and play,
  * open file in audacity and enlarge a particular damage point.

 On both XO-1.5, there is a clicking in the recorded ogg file.  The
 clicking occurs randomly, and sounds like a buffer overrun or underrun
 effect.  The curve in audacity shows a discontinuity in the waveform at
 the point of the clicks.  The total power level of the click (and the
 recording) is low; it required a silent room and maximum volume setting to
 hear it.

 On XO-1, the symptom did not occur.

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Ticket URL: <http://dev.laptop.org/ticket/9949#comment:16>
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