The fast Continuous Wavelet Transform (fCWT) is a library for fast calculation of CWT.
APACHE-2.0 License
An adaptive fast function approximator based on tree search
A library for computing the Fast Fourier Transform (FFT) in one or two dimensions.
The little FFT library
Complex Continuous Wavelet Transform
A simple, C99, header only, 0-Clause BSD Licensed, fast fourier transform (FFT).
DO NOT CHECK OUT THESE FILES FROM GITHUB UNLESS YOU KNOW WHAT YOU ARE DOING. (See below.)
A Fast Fourier Tranform Analyzer Tool built in c will convert PCM data into frequency spectral data