| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound synthesizing system and method to reduce a formant shift without using one or more of linear predictive coding(LPC) filter as to sound synthesis, in particular in its inside. SOLUTION: This synthesizer has a wave source for generating periodic wave forms, a frequency shifting circuit 364 for frequency-shifting the periodic wave forms, and a wave form shaping circuit 370 for converting the periodic wave forms into wave forms containing formants, and the synthesizer is provided with a bias circuit 366 which is a displacement compensating circuit used in the synthesizer where the formants are displaced by frequency shifting, which introduces bias into the periodic wave forms based on frequency-shifted degrees of the periodic wave forms by the frequency-shifting circuit 364 to reduce frequency-shifted degrees of the formants by the bias in response to the bias, and which is connected to the wave source and the frequency shifting circuit 364. |
