[LAU] denoising audio files

[Georg Holzmann]

Hallo!

> What about take sample of "clean noise" (usually on beginning of
> recorded track) and use some phase cancellation trick to add sampled
> noise in opposite phase.

No, because noise has random phase, if you are speaking from 
non-periodic noise ...

But a similar idea is used by many spectral-based noise reduction 
techniques:
they take a short noise print and then try to remove this constant noise 
from all other signals, so that just the signal without the noise remains.

LG
Georg


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