AcoustID is a project providing complete audio identification service, based entirely on open source software.
It that consists of aΒ client libraryΒ for generating compact fingerprints from audio files, a large crowd-sourcedΒ database of audio fingerprints, many of which are linked to theΒ MusicBrainzΒ metadata database using theirΒ unique identifiers, and a web service that enables applications to quickly search the fingerprint database.
acoustid.org
Applications
Acoustic Fingerprint – Wikipedia
