unknown audio codec

[tyler_durden]

I've got a movie (avi - divx) that I want to convert to mpeg but when I put it into virtualdub (to check the file) it tells me that there is an unknown audio codec on it.
So I can't convert it to mpeg (because it can't decode the audio).
Can somebody tell me how I can figure out what codec the audio whas encoded with?

I have got the Nimo Codec Pack installed!

[WeedVender]

Its Ac3, Dolby Digital Surround
Try to find an AC3 codec or just update your Direct Show

[ZippyP.]

Gspot, in the Tools section under Other Tools, will test any file and report the required codec and if it is installed.

[BoogieMan]

G Spots the best, not only tells you what codecs, but also whether or not you have it installed. :P

[tyler_durden]

gspot told me that I've got the ac3 codec installed but in virtualdub it still tells me that it is an unknown audio codec! -> it wont let me encode it to mpeg

[legoman666]

download the latest verson of the codec, that always seems to work for me,

[tyler_durden]

found another way to solve the problem myself!

I used Goldwave to make a .wav from that ac3 and then i made a new avi in Virtualdub. (Audio as a wav source -> convert it to mp3 and video as direct stream copy...)

...seems to work!

Thanks to Goldwave - a very helpful tool!

[ZippyP.]

I use Goldwave for AC3 and MP3-VBR sound. Vdub does not convert AC3 and you need Vdub-MP3 when you have MP3-VBR. Goldwave is definitely the easiest way but I think Soundforge and Besweet will do the same thing.