| 摘要 |
PROBLEM TO BE SOLVED: To actualize resonance at a desired pitch even after the composition of respective musical sound signals of a plurality of channels. SOLUTION: The delay times of respective delay elements 61 to 68 of a resonator 50 match sampling cycles of a musical sound signal. A delay cycle and a feedback cycle are determined based on to which of multipliers 71 to 78 a resonance coefficient (k) is supplied. As the value of the supplied resonance coefficient (k) is switched to larger values from '0', the level of the resonance frequency, i.e., the intensity of the resonance increases. As the resonance coefficient (k) is supplied to two of the multipliers 71 to 78 at the same time in parallel, the intermediate frequency of the two multipliers resonates (Fig. 11). When the two resonance coefficients (k) are varied in weight, the value of the intermediate resonance frequency varies. The supply of the resonance coefficients (k) is carried out at a plurality of resonance pitches through composition, and resonance to a plurality of frequencies at a plurality of pitches is actualized. |
