Poor sound quality with snd_via8233
Niklas Sorensson
nik at cs.chalmers.se
Tue Mar 21 15:37:32 UTC 2006
>> apa# /usr/sbin/mixer
>> Mixer vol is currently set to 100:100
>> Mixer pcm is currently set to 100:100
>> Mixer line is currently set to 100:100
>> Mixer mic is currently set to 100:100
>> Mixer cd is currently set to 100:100
>> Mixer rec is currently set to 100:100
>> Mixer igain is currently set to 100:100
>> Mixer ogain is currently set to 10:10
>> Mixer line1 is currently set to 75:75
>> Mixer phin is currently set to 0:0
>> Mixer phout is currently set to 0:0
>> Recording source: mic
>>
> Reduce those "100" to "85", or less. You're overdriving it too much,
> hence, the constant distortion. If you have amplified speaker, use the
> volume knob there.
Duh, that was simple enough! It seems that pcm was mostly responsible for the
overdrive. Thanks!
> Report (and partially from my experiences) indicate that using
> SCHED_ULE can give better audio/multimedia performance. Perhaps you
> want to give it a try.
It works satisfactory now, but I'll give it try anyway.
/Niklas
More information about the freebsd-multimedia
mailing list