AC3 To WAV Assistance Needed

[k1ng_g30rg3]

hi, i'm having a problem trying to convert ac3 audio to wav using the following tutorial https://www.videohelp.com/sefy/?id=wavextract2.html.

just to let you know what's going on i first identified the audio codec using gspot and it's ac3 (0x2000) dolby laboratories, inc. i then followed the tutorial i provided a link to above to a t and when i get to step 3 where i'm supposed to open up headac3he and click on the source file and then select the ac3 / wav file i generated with virtualdub it always says the same thing "could not find data chunk!"

what am i doing wrong? and is there an easier way to convert ac3 audio to wav?

i should also mention the only thing i was kinda unsure about in the tutorial was step 2 (a / b) which reads "click on "file" then "save wav" and select your target name and click on the "save" button, this will create an ac3 file with a wav header which we will need to unpack into an uncompressed wav file for better usage with other programs."

the part i was unsure about was the "select your target name part"

[Qeef]

ok, here is how you do it the easy way:

1. Open virtualDub.
2. Open your AVI file.
3. goto AUDIO en select FULL PROCESING mode.
4. goto FILE and select SAVE WAV
5. enter a name for your wav file.
6. use the produces wav file in TempGenc.
7. Headac3he is not needed!!

good luck.

Qeef.

[k1ng_g30rg3]

hi qeef, thanks for responding i just did everthing you said to do to a t and when i went to file and selected save wav and entered a name to save it as and clicked save i got the following virtualdub error "no audio decompressor can be found to decompress the source audio format"

any suggestions?

[lumis]

ac3filter

[Qeef]

Yes, you don`t have the proper codecs installed!!!!
Install ac3filter (or the K-lite codec pack FULL).

greetings,

Qeef.

[bugster]

Yes, you don`t have the proper codecs installed!!!!
Install ac3filter (or the K-lite codec pack FULL).

greetings,

Qeef.

I would not reccomend installing ANY codec pack. Download and Install individual codecs if and when you need them.

[k1ng_g30rg3]

thanks guys it worked i did have one more question though. can i use the wav file i converted from ac3 to wav with mainconcept's mpeg convertor?which is what i've been using after haveing a few issues with tempgenc.

i don't know why but when i use tempgenc to convert xvid to vcd the video would always come out fine but the audio would never play even when i decompressed it with avi2vcd. so thats when i started using mainconcepts mpeg convertor and havent had a problem with it till i came across my first xvid movie with ac3 audio as most are mp3 audio.

anyways thx for the help guys i appreciate it

[celtic_druid]

AC3Filter is a dshow decoder. VirtualDub requires an ACM decoder. Maybe HeadAC3he just doesn't like AC3's with wav headers?

[Mem0]

hi qeef, thanks for responding i just did everthing you said to do to a t and when i went to file and selected save wav and entered a name to save it as and clicked save i got the following virtualdub error "no audio decompressor can be found to decompress the source audio format"

any suggestions?

I have exactly the same problem, and I already have the ac3filter installed (0.70b), so I am able to play AVI with AC3 sound in Windows Media player and others...

I am not able to simply use "full processing mode" in Virtualdub due to this error, and I dont want to use headac3he or other tool.

Does this have to do with the mentioned ACM codec? Can someone explain how to make this work with VirtualDub?

Thanks

[Safesurfer]

Use the AC3 ACM Decompressor. Works fine in Vdub and Vdubmod.

[Mem0]

Thank you Safesurfer....

Works like a charm!!!!