Patent ID: 8452586

Claim:
A method of creating a resilient fingerprint of a reference sound or a query sound, the method including: using a processing device, repeatedly characterizing loudness of sound components grouped in filter banks of sample frames and residing in a computer readable memory, wherein the filter banks have a narrower frequency range and have closer mid-frequency spacing in frequencies between about 750 hz and 1450 hz than above 1500 hz or below 500 hz; flagging loudness peaks among the filter banks that are above cross-frequency and time masking thresholds in the sample frames, wherein the cross-frequency masking threshold for a particular frame is set relative to filter band characterizations of one or more masking sounds and the time masking threshold for successive frames is set relative to the filter band characterizations of the masking sounds; and coding the flagged loudness peaks in relation to the cross-frequency and time masking thresholds to create a frame-by-frame, filter bank-by-filter bank characteristic matrix.