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Timber is a library for realtime pitch detection in web apps.

It was written by Bill Moorier, and released under the BSD license.

You can play with a live demo of it, or read the docs to learn how to use the library in your own web apps.

The algorithms used in Timber are heavily inspired by A. de Cheveigné and H. Kawahara's excellent 2002 paper, "YIN, a fundamental frequency estimator for speech and music".