Helix Producer problem

[The Belgain]

I'm trying to convert MPEG1 files (VCD compliant) to RV9 using Helix Producer Plus, 2 pass with the 256 DSL audience. The audio in the original file is perfectly in synch with the video, but the file ourputted by Helix Producer is out of synch. If I convert the file using VirtualDub or Windows Media Encoder I have no synch problems.

The only solution I have found so far is to demux the audio and video of the source file, adjust the length of the audio (for some reason they don't match once demuxed - this seems to be what's causing the trouble), then feed them to Helix Producer with avisynth. This is a pain to do, why doesn't Helix Producer synch the audio correctly when other programs can?

[The Belgain]

No-one? Karl?

[The Belgain]

Right hten...over to Mindows Media encoder it is then. At the risk of going off-topic, what's the best setting for 32kbps wma audio? Will stereo sound like ass (ie should I go mono)? 22kHz or 32kHz? VBR I assume?

[Dark-Cracker]

hi,

demux the audio and convert it to wav uncompressed pcm file and try to make a avisynth with :

video=directshowsource("c:\XXX.mpg").killaudio()
audio=wavsource("c:\XXX.wav")
return (audiodub(video,audio))

and open this .avs with rela producer and start encode. perhaps this will solve your problem.

[The Belgain]

Yeah, I can get it work using avisynth, but first I have to adjust the length of the wav using Wave Length Adjuster. Which means Demux-->Decode-->adjust length-->write avisynth script-->open on helix producer.

It's a pain in the ass. Does anyone know why Helix Producer doesn't handle it ok to start with when everything else does?

[slavickas]

it seems something similar to
http://forum.doom9.org/showthread.php?s=&threadid=44897