#11334 NORM 11.3.0: XO-1.75 audio sounds terrible in some configurations

Zarro Boogs per Child bugtracker at laptop.org
Thu Oct 13 13:15:16 EDT 2011

#11334: XO-1.75 audio sounds terrible in some configurations
           Reporter:  dsd        |       Owner:  saadia       
               Type:  defect     |      Status:  new          
           Priority:  normal     |   Milestone:  11.3.0       
          Component:  kernel     |     Version:  not specified
         Resolution:             |    Keywords:               
        Next_action:  never set  |    Verified:  0            
Deployment_affected:             |   Blockedby:               
           Blocking:             |  

Comment(by dsd):

 Testing with speaker-test producing a sine wave, I cannot reproduce any
 crackles at any sample rate. Mitch suggests that there could be something
 wrong with the buffer management - we arent recycling buffers fast enough
 upon interrupts, or something like that. The difference in results could
 also be due to the use of buffer sizes that match badly with the audio DMA
 buffer size.

Ticket URL: <http://dev.laptop.org/ticket/11334#comment:2>
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