Numo::FFTW

FFTW3 interface for Ruby/Numo::NArray. Under development.

Numo::FFTW API Document

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data.
FFTW site

$ gem install numo-fftw