Log in

View Full Version : 59.94 to 29.970 Audio Sync Issues


ZenMystic
25th March 2011, 20:45
I have a piece of of HD video that is 59.94 fps. But I need to covert it too either 29.970 or 23.976.

I have read a lot about converting it. I can convert the video fine, but not the audio, it is always out of sync no matter what I do.

How can the audio be done? Do I need to use a program or can AviSynth do it? I have only ever worked with video in AviSynth. I have never had to touch audio till now.

All I have right now are MeGUI and AviSynth. Because untill now it has handled everything I have thrown at it.

sneaker_ger
25th March 2011, 20:52
59.94 to 29.970 or 23.976 normally does not require any audio processing. You simply deinterlace, drop every even/odd frame or IVTC depending on the source and your desired output.

Post your script.

Ghitulescu
25th March 2011, 21:10
Define out of synch. I can only think of an initial delay that has not been taken into account.

ZenMystic
29th March 2011, 02:18
Yea I think it is a delay issue as I just now noticed that the original video file is out of sync too.