ifft - Compute the inverse Fourier transform of input buffers.
Inputs:
real [BUFFER] [REQUIRED]: input real coefficients.
imaginary [BUFFER] [REQUIRED]: input imaginary coefficients.
Outputs:
out [BUFFER]: output of inverse Fourier transform in time domain.
Computes the inverse Fourier transform from the given complex coefficients. The input Fourier transform is taken to be from a real signal, hence the output buffer will be of size 2 * n.
ifft can be fed the output of the fft module directly (real and imaginary), which will reconstruct the original signal.