| 主权项 |
1. A synthesizer, comprising:
a band dividing means that divides an input sound into a plurality of musical bands; a pitch detecting means that, for each of the bands divided by the band dividing means, detects a pitch of a signal of the each of the bands; a level detecting means that, for each of the bands divided by the band dividing means, detects a level of the signal of the each of the bands; a waveform generating means that, for each of the bands divided by the band dividing means, generates a waveform having a predetermined shape according to the signal of the each of the bands; a waveform period control means that, for each of the bands divided by the band dividing means, controls a period of the waveform generated by the waveform generating means corresponding to the each of the bands to be a period corresponding to the pitch detected by the pitch detecting means corresponding to the each of the bands; a waveform level control means that, for each of the bands divided by the band dividing means, controls a level of the waveform generated by the waveform generating means corresponding to the each of the bands to be a level corresponding to the level detected by the level detecting means corresponding to the each of the bands; an adding means that adds up the waveform is generated by each of the waveform generating means corresponding to each of the bands divided by the band dividing means and outputs a result thereof; and a pitch shift amount setting means that sets a pitch shift amount, wherein the waveform period control means controls the period of the waveform generated by the waveform generating means corresponding to each of the bands to be a period corresponding to a value obtained by adding the pitch shift amount set by the pitch shift amount setting means to the pitch detected by the pitch detecting means corresponding to the each of the bands. |
