Patent ID: 7917358

Claim:
A method of detecting a transient in a digital audio signal, the method comprising: generating a first set of spectral characteristics associated with a first portion of the digital audio signal and a second set of spectral characteristics associated with a second portion of the digital audio signal, wherein the first portion of the digital audio signal and the second portion of the digital audio signal partially overlap; comparing, for individual component frequencies, a magnitude of a component frequency in the first set of spectral characteristics with a magnitude of a corresponding component frequency in the second set of spectral characteristics to generate a ratio, each generated ratio being included in a set of ratios; weighting the set of ratios, including calculating, for each ratio in the set of ratios, a function value and applying a weighting factor to the calculated function value; and analyzing at least a portion of the weighted set of ratios to detect a transient associated with the first portion of the digital audio signal.