Audio can't extract

[Shaorin]

I have a avi file that i want to convert to mpg2 but when i finished converting with tmpg plus i cannot hear the audio. I tried extracting the audio to wav but tmpeg plus hangs when it starts converting. I can play the avi fine.

[NormaJ]

Have you tried VirtualDubMod to extract the audio to wav?

[Shaorin]

yea i extracted but when I play the wav for testing winamp says i'm missing a codec

[Abond]

I think you have very old GSpot version. Look for 2.52 beta 1 (or here)
Also look which filters are used at rendering - this can give you a hint which audio codec is used

[Shaorin]

[mats.hogberg]

AC3 audio, I bet. Try the AC3 Filter

/Mats

[Abond]

yea i extracted but when I play the wav for testing winamp says i'm missing a codec

Hopefuly you didn't forget to use full processing mode.

[NormaJ]

mats, do you think ac3, being 195 kbps. It sounds to me like VBR.

[Abond]

The tag of ac3 is 0x2000 IIRC. Could be some kind of aac (not sure).

[Shaorin]

Well i installed the AC3 Filter but that didn't help at all. With Full processing mode it said it gave a error "No audio decompressor be found to decompress the source audio format"

[NormaJ]

Googled and got his:

http://www.audiotag.org/0x00ff.html

Looks like Abond matched the point.

[mats.hogberg]

AAC! Pretty rare for an AVI, I dare say! http://www.rarewares.org/aac.html - There's a DirectShow filter for AAC

/Mats

[NormaJ]

yep, very rare avi. Never seen before

[celtic_druid]

That is because AVIMuxGUI is about the only muxer that supports it. It can also demux it.

[Shaorin]

I managed to extract the audio using AVIMuxGui and the audio is now a AAC format. I converted the AAC to wav and then when i play it, it becomes unsynced

[celtic_druid]

If you want it as a pcm wav then I would just decode directly with mplayer. No need to extract and if it plays in sync, it should decode in sync to.