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I need a FFT library for ARM platforms, especially in Apple M1 and Androids. I have already browsed some, but none meets my requirement:

  • FFTS has stopped development, and its assembly code do not compile in newer armv8a.
  • FFTW is not free for commercial use.
  • KissFFT is not optimized, actually it is almost exactly 4-times slower than FFTS.
  • CMSIS is rather large and complicated system. I still don't know how to make it work.
  • vDSP is Apple-specific.
  • I'm trying on ARM ComputeLibrary. But it would be better if there's a smaller library.

I'm using C and C++.

If there's no one, I have to try to write some.

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