High-quality pro audio resampler / sample rate conversion C++ library. Very fast, for both audio resampling and time-series interpolation.

High-quality pro HDR image resizing / scaling C++ library, including a very fast, precise, SIMD Lanczos resizer (header-only C++)

RTSP video streaming server implementation based on Live555 and FFmpeg

An audio decoding, resampling and mixing library for SDL.

A free/open source VST2, VST3 and AudioUnit plugin to easily split a sample in up to 64 slices

Mathematical Morphology in Any Number of Dimensions

A header only ready to include mirror of the HIIR library by Laurent De Soras, an oversampling and Hilbert transform library in C++, with additional support for double precision on ARM AArch64 using Neon.

Mirror of the resampler world4utau in http://utau2008.xrea.jp/mp3/engine_hikaku.html

Sirius - Fast and simple to plug-in C++ resampling library that is taking advantage of the Fourier Transform

Kidnapped Vehicle (project 6 of 9 from Udacity Self-Driving Car Engineer Nanodegree)

A library for ROS audio

OTB remote module for resampling based on FFT

High-quality pro audio sample rate converter / resampler library