how to remove KNOW noise track from another track ?

[MultiTaskinG]

Hi to all !


If I have an audio track ("result.wav") that is the mix from "voice.wav"
and "sounds.wav" I know that there is some way to remove "voice.wav"
simply cutting some frequencies ma the result is not the same of
"sounds.wav" (differently crc check).

If I have "result.wav" and "voice.wav" there is a way to recover
"sounds.wav" with the same crc check of the original sound.wav ?

With wich software can I try something about ? adobe audition ?

thanks a lot

[Laurence Payne]

On Thu, 31 Aug 2006 19:31:20 +0200, MultiTaskinG >
wrote:

>Hi to all !
>
>
>If I have an audio track ("result.wav") that is the mix from "voice.wav"
>and "sounds.wav" I know that there is some way to remove "voice.wav"
>simply cutting some frequencies ma the result is not the same of
>"sounds.wav" (differently crc check).
>
>If I have "result.wav" and "voice.wav" there is a way to recover
>"sounds.wav" with the same crc check of the original sound.wav ?
>
>With wich software can I try something about ? adobe audition ?


Quick answer (if I've understood the question):
No. Sorry.

[Federico]

> If I have an audio track ("result.wav") that is the mix from "voice.wav"
> and "sounds.wav" I know that there is some way to remove "voice.wav"
> simply cutting some frequencies ma the result is not the same of
> "sounds.wav" (differently crc check).
>
> If I have "result.wav" and "voice.wav" there is a way to recover
> "sounds.wav" with the same crc check of the original sound.wav ?


Add again the "result.wav" to the "voice .wav" but reverse the phase on the
"voice.wav".
That will be "result.wav"-"voice.wav".
Be sure that the files are playbacked at the same volume as the mix was
done.
F.

P.S. if you have added reverbs or similar then the question is much more
difficult.


If it doesn't work you can try to:
1) Encode the "result.wav" in M/S
2) Set the M track at 0 volume
3) Encode the track back to LR

This may work but it really depends on the source files you are working
with.

[speedydave]

actually, my DSP professor has done work on this exact type of thing.
listen to these samples:
<a
href="http://www.ece.lsu.edu/wu/public_html/demo_blind_separation/demo_audio.html">http://www.ece.lsu.edu/wu/public_html/demo_blind_separation/demo_audio.html</a>


MultiTaskinG wrote:
> Hi to all !
>
>
> If I have an audio track ("result.wav") that is the mix from "voice.wav"
> and "sounds.wav" I know that there is some way to remove "voice.wav"
> simply cutting some frequencies ma the result is not the same of
> "sounds.wav" (differently crc check).
>
> If I have "result.wav" and "voice.wav" there is a way to recover
> "sounds.wav" with the same crc check of the original sound.wav ?
>
> With wich software can I try something about ? adobe audition ?
>
> thanks a lot