Probs with ac3 audio conevrting to vcd

[ShorN]

Im trying to convert a xvid avi file to vcd however when i start converting I get problems.
In gspot it says: ac3 (0x2000) "Dolby Laboratories, Inc"
codec for the audio, it says codec is not installed. Ive installed the filter from here: http://ac3filter.sourceforge.net/
But it still comes up with codec not found???

Any help anyone please???!

[theDruid]

hi ShorN,

i just had a very similar problem. the files were playing in WMP and WinDVD etc.., but nothing was opening the audio for encoding.

Gspot was saying the exact same thing for codecs, although it was saying that DirectShow was able to open the files. VirtualDub was able to save the audio as a wav (demultiplex), but the wav's were still encoded in some way - small files (approx 90meg) that would not be accepted by TMPGEnc etc..

The only way I've found of dealing with this is to open the original Xvid avi's with GoldWave and 'Save As' a wav file.

Then, I was able to process the audio as usual (it needed to be normalised and resampled etc.. but this was fine once it was PCM wav of about 600-700meg) I used Soundforge and then toolame, but I'm sure there are other ways of doing this - like BeSweetGUI etc..

I could then use TMPGenc to multiplex the video that TMPGenc could create from the original avi's with the mp2's that I'd been able to create.

The VCD's I've made in this way seem to work fine.

I hope that's of some help.

cheers,
mcdruid.

[bolta]

Hey . . .

Have a look for a package in the Tools section called "AVI2VCD" - in there is a little utility called "decompress". Feed this the location of your avi with the compressed audio, and it will spit out an avi with an uncompressed (ie PCM) stereo audio soundtrack.

Process as normal - me (when making a vcd), I strip the audio using vdub into a wav and then encode to mp2 using toolame. Re-mux the audio with the video track (once I process that by frameserving with vdub to CCE) and the vcd is done!

Another option is, if you've demuxed the audio to a small wav file using vdub, rename the file with an ac3 extension (instead of wav) and process it using "Headac3" - this will give you the ability to produce a wav file directly from the compressed ac3 file.

Cheers,

B.