| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic musical device capable of imparting an optional length of vibrato, capable of attaining a natural vibrato near to performance of an actual musical instrument, and capable of controlling a depth and a speed of the vibrato. <P>SOLUTION: This electronic musical device has: a pitch acquiring means for acquiring a temporal locus of a pitch from an original sound waveform data; an extraction means for extracting respective times and pitches of a ridge and a valley of a peak, from the acquired temporal locus of the pitch; a vibrato period calculating means for calculating period information of the vibrato, based on a difference between the respective times of the ridge and the valley of the extracted peak; a vibrato depth calculating means for calculating depth information of the vibrato, based on a difference between the respective pitches of the ridge and the valley of the extracted peak; a recording means for recording, as a time-serial data, the calculated period information and depth information of the vibrato as one set, together with the time from a pronunciation start time of the original sound waveform data; and a setting means for setting a loop beginning end and a loop terminal end in the time-serial data. <P>COPYRIGHT: (C)2009,JPO&INPIT |
