PlanetZ forums - scopeusers.com

Hey,

Does anyone know the feasibility of Fourier synthesis with SFP or Xcite or if it has been done.

Eric.

IMHO, and in short: with the current SDK, FFT will not happen either on Scope or XITE.

at0m wrote:IMHO, and in short: with the current SDK, FFT will not happen either on Scope or XITE.

I think that maybe the Harmonic Effects Bundle made by G.O.S.T involves FFT done in Scope's sdk. I could be wrong in assuming that though, so apologies in advance if I'm spreading misinformation. Maybe tgstgs or someone else can clarify.

you need a sin a cos a mul and a div;
if one gets access to a pi somehow one may do the butterflywalz;
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we experimented a lot with ffts/dfts;
analyzer filter pitchshifter wavetables who knows ?
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thers no classical fft/dft inside the harmonic bundle;
fast fourier isnt fast enough for dynomic!
we found a much smarter way;


transformin vibes

when surching for a source i realized its written waltz in english!!

tgstgs wrote:thers no classical fft/dft inside the harmonic bundle;
fast fourier isnt fast enough for dynomic!
we found a much smarter way;

Sorry, my mistake!

its easy to do Fourier synthesis, just not analysis

Depends on the analysis....STFT could be done on Scope quite easily I bet. You may have to resort to using math modules directly as RedMuze does and deal with the dsp-overhead this creates, but if one were to move beyond the typical FFT eq's & FIR filters I'll bet some interesting Fourier transforms are still out there

valis wrote:Depends on the analysis....STFT could be done on Scope quite easily I bet. You may have to resort to using math modules directly as RedMuze does and deal with the dsp-overhead this creates, but if one were to move beyond the typical FFT eq's & FIR filters I'll bet some interesting Fourier transforms are still out there

yes possible but not "easy"

and all the best hackers are figuring out ways to steal your identity or make your computer in to a zombie. not working in sdk like they should be.

Since we can download devices for demos now, anyone who wants to take a leap into the future should check out the Harmonic Bundle from G.O.S.T.
There's nothing in the world like it, and if you are looking for a signature sound it can do amazing things to keyboards and audio in general.

http://forums.planetz.com/download/file.php?id=4026
Hendrix Synth...

http://forums.planetz.com/download/file.php?id=3915
Weird Synth Shit....

yet

Neutron wrote: yes possible but not "easy"

and all the best hackers are figuring out ways to steal your identity or make your computer in to a zombie. not working in sdk like they should be.

Right when I said 'easy' I guess I meant that STFT analysis & resynthesis can be less computationally demanding as doing fft based resynthesis, at least according to my experiences over a decade ago using csound. Not having an SDK license here, I'll be quite honest that I've no clue what it would take in scope.

Also there has been at least one device on Scope that integrated host-based FFT analysis with Scope, so that's another avenue for doing at least the analysis portion for more complex modelling.

I like the word " yet ".
Much more than the word " soon. "
We have a Clintonesque definition of that word these days......
He did teach the world how to talk yourself into passing a lie detector test....

" Real Soon Now " is most refreshing....

transforming from time to frequency domain and back again is definitive possible;
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the told stft in spezial i never tried;
on the first look its probl. i would see in Mr. Gauß if my read was o.k.;
but thers always a workaround!
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if im allowed to give a hint for one developing without takin your fun:

build a workin butterflynetwork first;
then you are done for 90% of a basic fftstuff;

and alsways think about Mr. Fourier himself!
He had no calculater to press some buttons to get a result;
and he had no sdk with ready made atoms;
so one would say: he wasnt able to do a fft at all; NO?

------
its up to the developer how to implement which algo depending on the job to do;
they bsaicaly deliver all the same results _ more or less;
the quality on the job in detail is a direct indicator of the developers time spent on optimizing;


have a nice weekend and good vibes from vienna

So the answer is - yes maybe, and it's kinda been done?

I'll check out the G.O.S.T harmonic bundle, anyway.

Eric.