Sony KDL Audio Sync 2.6.7

[mezzmo@mvg.za.net]

We did reproduce the issue again. Can you try this for us?

Hi Paul.

Am pre-transcoding now at work, but will test playback tonight and let you know.

Cheers
Mark

[mezzmo@mvg.za.net]

Hi Paul

Just something I noticed...

For pre-transcoding, when you select the MPEGTS (which is highlighted), the next option is Video CHannels, H264 is highlighted but not ticked and H264 (24fps) is ticked?

Why is the H264 (24fps) ticked if it is not the preferred/recommended setting?

Thanks
Mark

H264.jpg

[mezzmo@mvg.za.net]

Hi Paul

Tested this as requested. Even with the transcoding set up as requested the Lip Sync loses synchronization. By 6 minutes into the video the audio is badly shifted.

I look forward to your further feedback.

Thanks
Mark

[Peter]

Hi Mark,
the H264 (24 fps) setting is ticked because Mezzmo has matched this to the frame rate of the file, if the frame rate does not match 24, 50 or 60 then the preferred setting is used.

We will investigate the audio sync issue further to try to find a solution.

[mezzmo@mvg.za.net]

We will investigate the audio sync issue further to try to find a solution.

Hi Peter

Tested this video on my Sony PS3 this evening and it played fine, no audio issues etc. Used the same pre-transcoded file too.

Seems that this issue is related somehow to the KDL.

I look forward to hearing from you soon.

Mark

[Paul]

The issue is very much a Sony Bravia 2010-series firmware issue. We reproduced it here with our 2010-series Bravia & one of our video files, but after doing a full pre-transcode (no remuxing) we got the audio to sync properly. In your case, unfortunately it did not work so we'll look into it more.

[mezzmo@mvg.za.net]

In your case, unfortunately it did not work so we'll look into it more.

Hi Guys

Any news on this? Or any other suggestions?

Thanks
Mark

[Peter]

Hi Mark,
the best recommendation we have at the moment is for you to pre-transcode the file to mpeg2video, this should eliminate the sound synch problem but will take longer to transcode. We are going to try the latest FFmpeg to see if there is any improvement to the sound synch problem in the mpegts container when h264 is used, if there is no improvement we will have to investigate other possible FFmpeg commandline options to try to resolve the problem.

[mezzmo@mvg.za.net]

pre-transcode the file to mpeg2video, this should eliminate the sound synch problem but will take longer to transcode.

Actually the file transcodes pretty quick to this format...Transcode.jpg

I get >300fps.

Will try the transcoded version and see what the result is...

Mark

[mezzmo@mvg.za.net]

Hi Guys

Tried mpeg2video and the audio seems better, but the aspect ratio is off...

See attached pictures, the mpeg2video has large bands top and bottom...

MPEGTS.jpgMPEG2VIDEO.jpg

Any comments suggestions?