Windowing, FFT, IFFT in Nyquist prompt - Implementing Paulstretch

Audacity 3 Help Forum Windows
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1

I wanted to know if there is any good doc on implementation of paulstretch in nyquist prompt or if it’s even possible.
I think issue relies in choosing window function and applying both FFT and IFFT in Nyquist per one prompt.
I’ll be more than glad for any help on that.

2

I expect it is possible, though certainly not a “beginner’s project”. The code would be very complex, and Nyquist’s implementation of FFT/IFFT is not beginner friendly.