Welcome to Breakfast Quay, home of high-quality libraries for use by audio and music developers.
|Rubber Band Library
Audio time-stretching and pitch-shifting.
Simple music audio tempo estimation in self-contained C++.
RDF library for application developers using C++ and Qt.
The libraries here are open source, and most require a commercial licence if they are to be used in a proprietary product.
Buy a licence for commercial use of one of these libraries.
The company that made this, Particular Programs Ltd, occasionally publishes end-user applications too:
|Rubber Band Audio
A convenient and flexible application for changing the speed and pitch of audio recordings, powered by Rubber Band Library.