hello
do you mean direct resynthesis (using only inverse FFTs, without forward FFTs) ?
a solution could be using [tabreceive~ array1], an objects who outputs continuously one block of data from array1 (which should have a size equal to a block)
in practice, you will have to use two arrays : *[tabreceive~ array1] is connected to the left inlet of [rifft~] (real part) *[tabreceive~ array2] is connected to the right inlet of [rifft~] (imaginary part)
the idea is to act on the arrays, in various ways
- using [tabsend~] (sends one block of data to an array)
- using [tabwrite], [tabwrite~], etc
- manual drawings
- etc
I don't know if all this works in practice, though ... it's a bit late now, I will try tomorrow ...
-- one solution that works is implementing a spectral oscillator (a series of additive sinusoïds that you can control the amplitude of with a graphic array)
the "16.table.spectrum.pd" patch in the "3.audio.examples" folder does exactly this the only problem is about the number of sinusoïds (in the above patch, there is a fundamental frequency and about 30 partials of this fundamental) you could avoid this problem using the "poly" object, but I don't know (at all) how poly works
Selon Thurstan thurstan666@hotmail.com:
I have a question about the FFT blocks. Is there a way to input spectrum-information in stead of time-based information?
To put it differently: If you put in a sine wave it will be analised and output like a sine wave. The spectrum will contain one bin. I would like to insert a pulse that would be analised in the window and outputted as if it were a bin. So when you delay the pulse with a feedbackdelay one will hear some kind of grain pattern consisting of little windowed sine components.
I hope my question makes sense ;)
Greetz Wilf
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