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[maxmsp] Re: pfft~, send~ and ASIO driver

BenCello benjamin.n.levy at wanadoo.fr
Tue Apr 1 12:06:15 MDT 2008


Thank you for your reply !

I thought actually about these problem of "virtual doubling" of the frequency. And I also tried with the [fftout~ nofft] but it is not working as I expected...

My idea is to have the pfft~ doing the windowing and overlaping but be able to dispatch the fftbins in several places. So that I have only 2 or 4 ffts and iffts (in pfft~ patches) to save my CPU load. And do whatever I want with the bins exactly as "time-domain-audio". 
But there are three problems doing that with [fftout~ nofft] and [fftin~ nofft] pairs.
The first one is that you can't do that with more than 2 overlapping windows and you also can't specify some initial delays or "fullscale" ffts. 
The second is that the [fftout~ nofft] is still doing the adding before outputting as if there was an effective overlap.
And finally, I couldn't find a way to synchronise two pfft~ so I am sure that the bin-index for resynthesis is correct.

But maybe I am looking for something that is not really possible with pfft~ because it has not been conceived for that...

I just wanted to avoid the manual windowing and overlapping.

Thank's


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