[mythtv-users] choppy audio with hdtv playback

Pete Wall pete at petewall.net
Mon May 28 14:34:53 UTC 2007


Ok, I've confirmed that it is the CPU, because if I move the terminal  
window to the side, so that it's not covering the mythfrontend screen  
anymore, the choppiness returns.

I adjusted the slider in nvidia-settings, under the OpenGL section  
all the way to max performance, but that didn't resolve it.  I didn't  
find any other sliders in other categories.

Are there other tips for increasing performance?

Thanks,
Pete

On May 28, 2007, at 5:27 AM, William Munson wrote:

> Pete Wall wrote:
>> I finally have my AirStar HD5000 working, but when I'm watching any
>> of my programs recorded on that tuner, it sounds like they're talking
>> through a fan.  The video looks great, it's only the audio that's
>> affected.  Here's the funny part.  If I alt-tab to the terminal
>> window I used to launch mythfrontend, the audio is just fine.
>>
> When you tab over, it removes the video rendering load. Your cpu looks
> to be a bit on the wimpy side. Have you tried things like setting "Use
> Events" to true in your xorg.conf? I found that setting the video  
> slider
> in nvidia-settings to performance from the default of quality made a
> difference. NVidia driver 9577 here.
>> I have a 3.06 Celeron D, 1 GB RAM, running FC6, and a GeForce 6200TC
>> video card.  When playing HDTV, using xvmc, the cpu runs about 70%.
>>
>> Standard XvMC is enabled, extra audio buffering, video as timebase.
>>
>> I've tried flipping a lot of those settings, but nothing solves the
>> audio like switching to a different window.
>>
>> Any ideas?
>>
>> -Pete
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>>
>
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