Wish FFT library

I look forward to a FFT library or Class for B4i (now there is a FFT library for B4A written by Andrew Graham, maintained by Klaus)

Apple's vDSP API provides optimized digital signal processing routines, including a full suite of FFT functions ... but as far as I know they are not available in B4i...

In the meantime I can use an old FFT code translated from Fortran ... but of course it is not as fast as vDSP API!

I would also very much like to have an FFT library for B4i, preferably the Apple DSP routines.