- Fast Fourier Transform implementation via Cooley-Tukey (Radix-2 DIT).
- Convolution engine which performs partitioned convolution in the frequency domain using the overlap-add method.
- Windowing functions for creating impulse responses. (e.g. Hann, Lanczos, etc)
- Functions for creating common types of FIR filters. (e.g. low-pass, high-pass, etc)
This library was written for use in a real-time audio context. Convolver
allocates all of its buffers up-front and Forward/Inverse (FFT/IFFT) operate
in-place. This is to avoid allocations in the hot-path. I've used this library
to implement convolution reverb and perform various types of filtering.