| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of detecting a music portion in contents at a relatively low computation cost. <P>SOLUTION: A device for music detection is equipped with a first power calculation section which calculates the total of powers of respective channels of a two-channel speech, a second power calculation section which calculates the difference between the powers of the channels of the two-channel speech, a power ratio calculation section which obtains the ratio of powers calculated by the first and second power calculation sections, a comparison section which compares the ratio calculated by the power ratio calculation section with a designated threshold, and a decision section which decides a music section based upon the result of the comparison made by the comparison section. <P>COPYRIGHT: (C)2007,JPO&INPIT |
