Patent ID: 8060224

Claim:
A music genre judging device, comprising: a signal input part which takes in music reproduction signal outputted from a music reproduction device; a signal processing part which outputs an integration value and a differential value of a low frequency component and a differential value of a high frequency component of the music reproduction signal taken in by the signal input part; a data generating part which takes in the integration value and the differential values outputted from the signal processing part for each prescribed sampling unit time, judges whether the integration value and the differential value of the low frequency component and the differential value of the high frequency component exceed respective prescribed levels within the sampling unit time, and generates analysis data obtained by totalizing numbers of times of judgment when a value exceeding the respective prescribed level is detected for each prescribed sampling cycle and each of the integration value and the differential values; and a data analysis part which calculates respective average values of the totalized values, which are described in the analysis data, and respective coefficients of variation of the totalized values, which are described with respect to the differential values of the low frequency component and the high frequency component in the analysis data, and judges a genre of music outputted from the music reproduction device based on the calculation result.