Okay, so lets make real FFT in FS

[tester]

Okay, we know some theory on how to contact with DLL's, so let's make some real FFT in FS. I mean something, that operates on 65 up to perhaps even 512k resolutions...

My general understanding is this.
1. Via ruby - we need to send audio mono stream in frames (whatever that means...) to the DLL primitive.
2. DLL primitive will sent this to external FFT processor.
3. DLL will get back FFT data from external processor via ruby frame (in/out nodes seem to be paired?), and here things start to get tricky.

In FS - as far I can see, generally single green arrays are limited to 16k, maybe 32k. Over that size - FS starts to slow down. So there are few solutions, that should be incorporated in external FFT processor.

A) Either we need split the output FFT somehow into several paralel arrays, like 16k x 8 arrays (I don't know if this will work, I don't know if this should be done via FS ruby or within external FFT processor).
B) Or - some sort of zooming technique, that will always output single 16k array, but at desired zoom (x1-x2 range) ratio. Then FS should be able to perform paralel processing (general array vs zoomed array)

Now - one "release candidate" for FFT processing is probably this one:
http://www.fftw.org/
Or maybe something else, like wavelets? I don't know, but FS needs better analyzing tools (and if possible - at least near/usable real-time processing) than it can have right now.