Patent ID: 7567899

Claim:
An apparatus for recognizing an audio fingerprint including variation information of an unknown audio recording, comprising: a database operable to store a plurality of audio recording identifiers and metadata corresponding to a plurality of known audio recordings, wherein each of the plurality of audio recording identifiers are organized by variation information about the known audio recordings; a processor operable to search the database to identify at least one of the plurality of audio recording identifiers corresponding to the audio fingerprint using the variation information of the unknown audio recording and the variation information of the known audio recordings, wherein the variation information of the unknown audio recording is based at least in part on a time ordered comparison of a plurality of predetermined model frequencies and a portion of audio data from the unknown audio recording, and the variation information of the plurality of known audio recordings is based at least in part on a time ordered comparison of the plurality of predetermined model frequencies and a portion of audio data from the plurality of known audio recordings; and the processor further operable to cause the database to communicate to a source of the unknown fingerprint metadata corresponding to at least one of the plurality of audio recording identifiers.