COMPARING AUDIO USING CHARACTERIZATIONS BASED ON AUDITORY EVENTS

摘要

Described is a method for time aligning an audio signal and another signal, comprising deriving a reduced-information characterization of the audio signal and embedding said characterization in the other signal when the audio signal and other signal are substantially in synchronism, wherein said characterization is based on auditory scene analysis; recovering the embedded characterization of said audio signal from said other signal and deriving a reduced-information characterization of said audio signal from said audio signal in the same way the embedded characterization of the audio signal was derived based on auditory scene analysis, after said audio signal and said other signal have been subjected to differential time offsets; calculating the time offset of one characterization with respect to the other characterization, and modifying the temporal relationship of the audio signal with respect to the other signal in response to said time offset such that the audio signal and other signal are in synchronism or nearly in synchronism with each other.