Patent ID: 7627477

Claim:
A method of characterizing a relationship between a first and a second audio sample, the method comprising: generating a first set of fingerprint objects for the first audio sample, each fingerprint object occurring at a respective location within the first audio sample, the respective location being determined in dependence upon the content of the first audio sample, and each fingerprint object characterising one or more features of the first audio sample at or near each respective location; generating a second set of fingerprint objects for the second audio sample, each fingerprint object occurring at a respective location within the second audio sample, the respective location being determined in dependence upon the content of the second audio sample, and each fingerprint object characterising one or more features of the second audio sample at or near each respective location; pairing fingerprint objects by matching a first fingerprint object from the first audio sample with a second fingerprint object from the second audio sample that is substantially similar to the first fingerprint object; generating, based on the pairing, a list of pairs of matched fingerprint objects; determining a relative value for each pair of matched fingerprint objects; generating a histogram of the relative values; and searching for a statistically significant peak in the histogram, the peak characterizing the relationship between the first and second audio samples.