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Re: [Sc-devel] [commit?] StereoConvolution2L



you can turn off windowing with the new FFT implementation. Use windowType -1 (then make sure IFFT knows this).

Josh

On Dec 5, 2007, at 11:58 AM, nescivi wrote:

On Wednesday 05 December 2007 20:55:09 Scott Wilson wrote:
On 5 Dec 2007, at 19:49, nescivi wrote:
Hiho,

On Wednesday 05 December 2007 20:08:32 Scott Wilson wrote:
I suppose this is technically already possible without the extra FFT using PV_Copy? But it certainly makes sense as a package for binaural
stuff.

No, Convolution is not using the FFT UGen as input.
it calculates its own internally.
I changed them to be identified as normal UGens, instead of
PV_ChainUGen,
since they aren't.

Ah sorry, I'd forgotten that! Is there a reason why actually?

you do not need the windowing which is used in the FFT UGen...

On the long term I'd also like to make a much more effiicient version, based on the BruteFIR algorithm. That however requires reordering of the FFT data,
so it would not be usable for other FFT manipulations.
It would allow you to do a LOT more Convolutions though...

sincerely,
Marije
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/* Joshua D. Parmenter
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“Every composer – at all times and in all cases – gives his own interpretation of how modern society is structured: whether actively or passively, consciously or unconsciously, he makes choices in this regard. He may be conservative or he may subject himself to continual renewal; or he may strive for a revolutionary, historical or social palingenesis." - Luigi Nono
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