Chromaprint is the core component of the AcoustID project. It's a client-side library that implements a custom algorithm for extracting fingerprints from any audio source. Overview of the fingerprint extraction process can be found in the blog post "How does Chromaprint work?": http://oxygene.sk/lukas/2011/01/how-does-chromaprint-work/
WWW: https://acoustid.org/chromaprint/
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