[linux-audio-user] Noise reduction with FFT

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On Thu, Jan 06, 2005 at 09:30:53AM +0000, anahata wrote:
> On Thu, Jan 06, 2005 at 01:42:36AM -0600, Spencer Russell wrote:
> > I've got this really noisy audio file I'm trying to clean up, and
> > I was thinking, it would be really cool if I could run a clip of
> > the file that was just the noise(it's a recording of a discussion
> > for a TV broadcast, so when no one's talking, it should be
> > silent) and have the program output an average frequency content,
> > in some sort of format that another program could take it as
> > input and create a filter that would filter out those
> > frequencies.
> 
> Isn't that exctly the way that the noise reduction "effect" in Audacity
> works (and other packages that do a similar job) ?
> 
See, my idea is SO GOOD, that a bunch of people have thought of
it already! I picked up gnome wave cleaner, and it's looking like
it might be do just what I want. It has several different
algorithms for noise reduction, so I've got lots of playing to
do.

-spencer

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