Fast Fourier Transform
This sketch performs an FFT (Fast Fourier Transform) on incoming audio. It uses the NE10 library, included at the top of the file.
Read the documentation on the NE10 library here.
frequencyDomain are variables of the struct
ne10_fft_cpx_float32_t http://projectne10.github.io/Ne10/doc/structne10__fft__cpx__float32__t.html. These are declared at the top of the file, and memory is allocated for them in
for loop performs the FFT which is performed on each sample, and the resulting output is placed on each channel.
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