| 摘要 |
PURPOSE:To obtain the real and ample musical tones which are not obtainable with conventional electronic musical instruments by producing resonance sounds by two means; a basic frequency information computing means and sound production control means. CONSTITUTION:The basic frequency or key code of the resonance sound is determined by the basic frequency information computing means. The musical tone waveform of the resonance sound is formed in accordance with this basic frequency information. The means for controlling the producing and silencing of the resonance sound is the sound production control means. The resonance sound is produced by each of the combinations of arbitrary two sound when the plural sounds are under production by this sound production control means. The production of the resonance sound is continued if the remaining one sound is under production even if one of the two sounds is silenced during this time. The resonance sound is silenced as well when the remaining one sound is silenced. The resonance sound by the oscillation of a string as is observed with a piano, etc., is produced with an electronic piano, etc., and the expression of the real and ample musical tones not obtainable with the conventional products is possible. |
