Patent ID: 7386217

Claim:
A video processing device, comprising: an audio event detecting means for detecting audio events in a video data; and a memory communicating with said audio event detecting means and storing video data and audio data corresponding to said video data, said memory further storing a predetermined energy threshold, a predetermined ZCR variance threshold, and a predetermined ZCR amplitude span threshold; wherein said audio event detecting means includes an energy detector, which detects an audio event in said audio data by measuring an energy content of said audio data and indexes said video data at about a beginning of said audio event and, wherein said audio event detecting means further includes a ZCR detector generating a ZCR value from said audio data and comparing a ZCR variance and a ZCR value span of said audio data to the predetermined ZCR variance threshold and to said predetermined ZCR amplitude span threshold, respectively, if said energy content satisfies said predetermined energy threshold.