[PD] analysis before synthesis: How?

meino.cramer at gmx.de meino.cramer at gmx.de
Sun Mar 7 16:29:02 CET 2010


Hi William,

 no, unfortunately no theremin...I fear, it is not even a synthesizer
 sound but of "natural" origin...

 Am I "lost in synthesis" ? 


In a world without fences and walls nobody needs gates and windows.
William Brent <william.brent at gmail.com> [10-03-07 16:08]:
> If the scifi-sound is a theremin, there's a good chance that you could
> have decent success using sigmund~ to follow spectral peaks over a
> certain volume, and resynthesize by sending the frequency/amplitude
> information to a bank of oscillators.  It'll help to know something
> about how spectral analysis works to find the best values for window
> size and hop, but sigmund~ makes things as easy as possible.
> 
> The other option that might be worth a shot is Audacity's "Noise
> Removal" effect.  You select a region of the file that is just noise
> to train it, then process the noise removal.  From the few times I've
> used it, I've gotten results ranging from laughable to passable.  It
> completely depends on the nature of the signal and noise components
> you're dealing with.
> 
> 
> Good luck,
> William
> 
> 
> On Sun, Mar 7, 2010 at 5:50 AM,  <meino.cramer at gmx.de> wrote:
> >
> > Hi,
> >
> > this is more a general question:
> > I have a "piece of sound" (sorry, English is not my mothers tonque...)
> > which conatins beside background noise a scifi-sound, which I want to
> > synthezise ("synthesise"?) with puredata as close to the original as
> > possible -- without the background.
> >
> > Now I am looking for recipe to do such a thing -- without the need of
> > a supercomputer and without the deep deep knowledge of really deep
> > math.
> >
> > Is there a way to supress the backgroudn as much as possible?
> > Would it be make sense to make a fourier analysis with a tool (what
> > tool -- I am using puredata on Gentoo-Linux)? Are there others
> > tool, which would help me to solve this task?
> >
> > Any idea and help are very appreciated -- thanks a lot in advance!
> >
> > best regards and have a nice sunday!
> > mcc
> >
> > --
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> >
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> 
> 
> -- 
> William Brent
> www.williambrent.com
> 
> “Great minds flock together”
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> 
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-- 
Please don't send me any Word- or Powerpoint-Attachments
unless it's absolutely neccessary. - Send simply Text.
See http://www.gnu.org/philosophy/no-word-attachments.html
In a world without fences and walls nobody needs gates and windows.





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