Intervalgram representation of audio for melody recognition
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United States of America Patent
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May 14, 2013
Grant Date -
Jan 3, 2013
app pub date -
Sep 13, 2012
filing date -
Jun 29, 2010
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Abstract
A system, method, and computer readable storage medium generates an audio fingerprint for an input audio clip that is robust to differences in key, instrumentation, and other performance variations. The audio fingerprint includes a sequence of intervalgrams that represent a melody in an audio clip according pitch intervals between different time points in the audio clip. The fingerprint for an input audio clip can be compared to a set of reference fingerprints in a reference database to determine a matching reference audio clip.
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