I am trying to understand the MSP tutorial patch about FFT. But it seems to me that the last example in the manual using frameaccum~ and framedelta~ does not clearly explain why and when they should be used inside PFFT~.
However, all the other patches dealing with convolution rarely use frameaccum~, phasewrap~ and framedelta~.
Could anyone explain to me a little bit ?
Are there other examples that use frameaccum~, phasewrap~ and framedelta~ ?
I would like see more examples so as to know when they should be used. If there is any better way or principle to uderstand it or to memorize it, please also let me know. Sometimes it is really hard for a musician to understand "abstract" math and physics.
PS: If you could, please also explain when index~ may be used in Pfft~ patch.
Thank you very much.