#10235 NORM 10.1.3: XO 1.5 Audio volume very low

[Zarro Boogs per Child]

#10235: XO 1.5 Audio volume very low
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           Reporter:  tch       |       Owner:  dsaxena            
               Type:  defect    |      Status:  new                
           Priority:  normal    |   Milestone:  10.1.3             
          Component:  kernel    |     Version:                     
         Resolution:            |    Keywords:  xo-1.5 sound volume
        Next_action:  diagnose  |    Verified:  0                  
Deployment_affected:  Paraguay  |   Blockedby:                     
           Blocking:            |  
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Comment(by greenfeld):

 Personally I'm not the most fond of this patch, as it reduces the amount
 of room to go up in volume.   I was tempted to use a 3dB rise instead of
 4dB, but subjectively I think the difference in A-B testing between an
 XO-1 and a 1.5 with my chin against the edge of the XOs is greater than
 4dB, even though I preferred the way an XO-1.5 sounded with a 3dB or 4dB
 rise.

 Also tested with decent quality headphones, although since they were
 reasonably sensitive I got my ears blasted at the default level, moreso on
 an XO-1.

 I do not know why we set the master level on boot on an XO-1.5 in olpc-
 configure but not obviously for a 1.0.   The git history for olpc-
 configure suggests that this has been the case since the 1.5 mixer
 settings were added.

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Ticket URL: <http://dev.laptop.org/ticket/10235#comment:7>
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