| 摘要 |
PROBLEM TO BE SOLVED: To reduce failure in detection when detecting a falsetto from singer's singing voice.SOLUTION: When generating voice information data including a harmonic tone rate, a pitch, and a lapse time as information from user's singing voice data (step S110), a control unit 10 allocates the voice information data to a voice distribution table (step S112). The control unit 10 subjects the voice information data to processing using a filter to successively calculate a calculation value (step S114). When the calculated calculation value exceeds a preliminarily determined threshold (YES; in step S116), the control unit 10 decides a position of the filter at timing when the calculated value exceeds the threshold (step S120). The control unit 10 detects voice information data included in a positively weighted region in the filter, as voice information data based on a falsetto (step S122). |
