Live TV Audio/Video Sync (1 Viewer)

[porky996t]

I hve just upgraded to RC3 and have noticed that there is a audio/video sync problem when watching live TV. The audio is delayed slightly, perhaps by .5 sec. If I timeshift back 15secs then playback is fine. It seems to affect only SD, as HD (BBC & ITV) televison is fine.

I'm am using ffdshow (as I did in RC2), but still get it with other TV playback codecs. This is the first time I have had this type of problem - never an issue with 1.0.2 or 1.1 RC1, RC2 etc.

Am I missing something really simple??

 

[mackis5]

I hve just upgraded to RC3 and have noticed that there is a audio/video sync problem when watching live TV. The audio is delayed slightly, perhaps by .5 sec. If I timeshift back 15secs then playback is fine. It seems to affect only SD, as HD (BBC & ITV) televison is fine.

I'm am using ffdshow (as I did in RC2), but still get it with other TV playback codecs. This is the first time I have had this type of problem - never an issue with 1.0.2 or 1.1 RC1, RC2 etc.

Am I missing something really simple??

I can just confirm the exact same problem with the same setup.

 

[mshorthose]

Just had this problem with RC4 - huge audio sync delay on live TV but fine with recorded material.
I don't know why this works or whether it was the correct approach to fixing the problem but I changed the following setting and now everything is OK:
In Media Portal Configuration:
>Codecs and Renderer
>Video Renderer tab
Change from Enhanced Video Renderer (EVR) to Video Mixing Renderer 9 (VMR9)

EVR seems to be the default setting.

Any further info on whether this is the correct fix gratefully received.

Martin

 

[tourettes]

Change from Enhanced Video Renderer (EVR) to Video Mixing Renderer 9 (VMR9)

EVR seems to be the default setting.

If you are using Vista / Windows 7 then EVR is the correct renderer type to be used (VMR9 is not supported by the team).

 

[mshorthose]

I'm using Vista so should indeed be using EVR - however, switching to the other seems to cure the problem.
Any idea what else it might be so that I can switch back?
At this stage it's more a case of "whatever works" since there was about a second time lag in audio on TV which made it unwatchable as it was.
Tell me what else to tweak instead!

 

[techchad]

I can confirm that I am having the same issue with Mediaportal RC4 using ffdshow (SAF 5.00 latest build), only happening in Live TV.

 

[mshorthose]

Changed back to EVR yesterday to see if the sync delay returned - turns out it is fine now.
This RC4 seems to have a mind of its own -
When I switch channels now, I am transported back about 30 minutes on the channel I was watching previously!
When I 'fast forward' to 'End' I get what it is I want to watch.
Wierd!

 

[splatterpop]

I can confirm having the sync issue on both vista/evr and xp/vmr9. It is related only to live tv, not to videos (ffdshow).

 

[Cousin_Jerry]

I've found with my Windows 7 machine that using the FFDShow codecs produce sync issue but also the EVR renderer produces a stutter and jerky playback.

Switching to VRM9 and the microsoft codes cures both issues.

 

[techchad]

Switching all of the TV Codecs to Microsoft DTV-DVD Audio & Video with EVR has corrected the issues for me on Windows 7 x64.