Audio desync at join of multiple files

[Stranger]

Hi, I suppose this is the right place to post, but please feel free to move to the audio section if this is the wrong place.

I use DGIndexNV for video recorded from sat.

Every movie is done with 3 or more files.

If I load a single file (any of them), DGI demux audio with indication of delay, I mux correcting those delay and everything is fine.
Please note that any file has a different delay.

If I load in DGI all the files together, DGI demux a single audio, (with, obviously, a single delay) but when I mux I found that audio is out of sync after any junction point.

I tried to make different .dgi files (one for each original file) but I'm not able to have the audio file in sync after junction.

How can I do? :confused:

Thanks,
Stranger

[Ghitulescu]

Well, I use MPEGvcr on the individual MPEG files (with or without commercial removal), then reauthor them (in the sense of joining them) ok.

The synch you mention should be less then one audio frame (AC-3 or MP2), if it's more then the software you use does not consider the delay.

[Shirtfull]

Try merging files before using DGIndexNV

[Stranger]

I thanks for answering.


The synch you mention should be lass then one audio frame (AC-3 or MP2), if it's more then the software you use does not consider the delay.

Much more....
First audio has a delay of 1063 ms, whilst second has 680 ms

Strange is that individually the delay is perfect....


Try merging files before using DGIndexNV


HOW? My recorder is a Clarke Tech, and files it generates are .trp the first, .001 the second and so on...

Do you know how to join them?

EDIT:
I found a solution on the internet.

1. copy /b all the files together to a single .ts file
2. tsremux copied file to a new .ts file
3. DGIndexNV on the remuxed .ts file

Extracted audio have a delay that, when compesated, is perfectly in sync with video at each point, even after junction.

Hope this help someone else :)

Bye,
Stranger.