audio gets asynchron at end of video when exportin to aac from PCM

[Platos]

Special thanks to davexnet and ProWo for their personal help on pm, but sadly the audio was still async.

Good news (for me): I did manage to make it sync now. How? With very hard work:

I did import the working audio from the new capture (with a perfect cut) and did then import the (then) not working audio from the old capture. I did cut at start as long the audio was starting at the same spot (i testet this by playing both audios and hear if it sounds like one voice).

Then i did the hard work. It took me around 50 manual "tempo" changes in audacity. I did always calculate the time-difference from the new audio to the old audio between two spots (mostly ~60s each time) and then did change tempo by that. This worked quite well. At the end i had to change speed in 20s rate because little unaccuracy accumulated. But it worked super well.

I should do this right at beginning instead of searching hours over hours for a solution. Yeah ok, it took me around an hour editing the audio, but at the end it was worth it. And im glad i had to do this only on this video. On the other videos i used the old audio, a simple stretch was enough (i found out later, because the worst video was the first and i thought all are like that).

So long story short: It works now.

There was some information a while back; there is/was a setting in the virtualdub capture
where strange things would happen to the audio - I believe something to do with synchronization,
but I don't remember the details
Perhaps you should switch to AmarecTV for the captire.
Yes, you're welcome to PM me, I'll take a look at the two audio's. I assume they're WAV files?

If i ever capture again, i will then first try both software and compare the audio.

[davexnet]

Hey good news, I'm pretty sure this is an occasional side effect of vdub capture as mentioned

[Platos]

yeah.

btw. the async was fluctuating in short times. Sometimes i had a lot of async in 60sec, sometimtes nothing and sometimes even 2 async in wrong direction (so the first 30 sec to early and after that it was to late).

Thanks to all!