#10234 NORM 10.1.3: test for audio record playback sound level differences 8.2.1 vs 10.1.2-beta

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#10234: test for audio record playback sound level differences 8.2.1 vs 10.1.2-beta
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           Reporter:  Quozl         |       Owner:                                   
               Type:  task          |      Status:  new                              
           Priority:  normal        |   Milestone:  10.1.3                           
          Component:  not assigned  |     Version:  Development build as of this date
         Resolution:                |    Keywords:                                   
        Next_action:  diagnose      |    Verified:  0                                
Deployment_affected:                |   Blockedby:                                   
           Blocking:                |  
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Comment(by greenfeld):

 I was asked to look at this, and although I don't have a sound meter,
 agree with Quozl that adjusting the Capture mixer control to 100% should
 solve the issue.

 I used a tone generator with headphones to create a constant audio tone,
 and placed the headphones over the microphone of an 812 XO-1, and then a
 10.1.3 352 XO-1.  The difference in volume recorded with the Record
 activity was noticeably lower on the 10.1.3 XO.

 I then used alsamixer to bump the Capture control up to 100% on the 352
 XO-1, and recorded another sample on it.  The volume of this sample then
 seemed {subjectively} similar to that coming out of the 812 XO.

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Ticket URL: <http://dev.laptop.org/ticket/10234#comment:11>
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