cl-fftw3 provides an interface for Common Lisp programs to use the FFTW3 Fourier transform library. A number of higher-level interfaces has been added in addition to the native interface to the FFTW3 C-based library.
A snapshot can be found here.
Homepage [broken link:] http://git.b9.com/?p=cl-fftw3.git
Topics: mathematics signal processing