I'm interested in doing vocoding via the frequency domain. (If you're interested, my goal is to implement in real time (on the Owl) my Python algorithms for descrambling helium speech. An example of my work is here: https://www.youtube.com/watch?v=Pp-ovryesUw)
Because this processing is easiest in the frequency domain, I'm interested in using FFT/IFFT operations on the Owl. In order to hope to do this in real time, I know that I should use the ARM-specific DSP library calls for the FFT/IFFT operations. Are there any Owl patches that successfully operate in the frequency domain so that I have an example to follow?
Searching for FFT on this forum didn't yield any useful guidance. Then, I did a search for "FFT" on the pingdynasty/OwlPatches GitHub repository, which yielded a patch called "AutotalentPatch". While the code is available, the patch is not a patch available on he main Owl website. So, does this patch work? Is it a good example to model my own FFT/IFFT processing?
Any guidance on FFT/IFFT on Owl would be greatly appreciated.