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Question on Lip Sync as related to GT220 card

 

 

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cnlibmyth at gmail

Mar 4, 2010, 7:20 AM

Post #1 of 2 (447 views)
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Question on Lip Sync as related to GT220 card

I have a Samsung LN52A650 (120Hz LCD) TV and my FE is running MythBuntu x64
9.10 w/ JYA's repo. I'm completely up to date. I'm having some severe lip
sync issues. I know that this is related to processing going on in the TV.
Even if I turn off AMP (the Motion Compensation tech) I still see delays in
the 30-40ms range. It seems to vary depending on the material I play (MPEG2
vs MKV @ 24Hz). I can manually change the audio sync rate in each
recording. I do know that there's a patch out there that would make this
sync change to every recording/video playback in Myth. However, if I
remember correctly, HDMI 1.2 and up has a feature that helps with this lip
sync issue. Would the new GT220 card (which has a 1.3 chip in it) resolve
this? Or am I completely off base? Thanks!

Jim


cnlibmyth at gmail

Mar 8, 2010, 8:00 AM

Post #2 of 2 (331 views)
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Re: Question on Lip Sync as related to GT220 card [In reply to]

On Thu, Mar 4, 2010 at 9:20 AM, James Oltman <cnlibmyth [at] gmail> wrote:

> I have a Samsung LN52A650 (120Hz LCD) TV and my FE is running MythBuntu x64
> 9.10 w/ JYA's repo. I'm completely up to date. I'm having some severe lip
> sync issues. I know that this is related to processing going on in the TV.
> Even if I turn off AMP (the Motion Compensation tech) I still see delays in
> the 30-40ms range. It seems to vary depending on the material I play (MPEG2
> vs MKV @ 24Hz). I can manually change the audio sync rate in each
> recording. I do know that there's a patch out there that would make this
> sync change to every recording/video playback in Myth. However, if I
> remember correctly, HDMI 1.2 and up has a feature that helps with this lip
> sync issue. Would the new GT220 card (which has a 1.3 chip in it) resolve
> this? Or am I completely off base? Thanks!
>
> Jim
>

Does anyone have an answer for this? Thanks!

Jim

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