#12588 HIGH 4-softw: XO-4 max volume produces distortion

Zarro Boogs per Child bugtracker at laptop.org
Sat Mar 2 07:00:34 EST 2013

#12588: XO-4 max volume produces distortion
           Reporter:  dsd           |       Owner:  dsd          
               Type:  defect        |      Status:  new          
           Priority:  high          |   Milestone:  4-software   
          Component:  kernel        |     Version:  not specified
         Resolution:                |    Keywords:               
        Next_action:  add to build  |    Verified:  0            
Deployment_affected:                |   Blockedby:               
           Blocking:                |  
Changes (by wad):

  * priority:  blocker => high


 "distorts audio badly toward the high end" ?   That phrase needs

 My testing shows that the kernel in 13.1.0 build 34 is an improvement.
 There is still some speaker clipping in both the touchscreen and non-
 touchscreen models, but not much.   Testing with headphones shows no
 amplifier clipping.

 The speakers on non-touchscreen models (used in all previous XO laptops)
 sound tinny compared to the ones on touchscreen models, due to less
 frequency response peaking at roughly 1KHz.

 I would prefer to see effort go into fixing 12527, which will allow users
 to lower the volume SLIGHTLY to eliminate the clipping.   right now the
 first volume step below full volume is a significant drop in volume.

Ticket URL: <http://dev.laptop.org/ticket/12588#comment:4>
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