| 摘要 |
A musical tone synthesizing apparatus is designed to simulate sounds of the non-electronic musical instrument, particularly the wind instrument. Herein, a wave-guide network and an excitation-vibration portion are connected together in a closed-loop. The wave-guide network is configured by plural bi-directional transmission circuits each at least providing a delay element, while the excitation-vibration portion provides a feedback loop between its input/output terminals. The feedback rate of this feedback loop is adjusted by a control signal supplied from an external device. By merely varying this control signal, it is possible to change the resonance frequency and also vary the width of the hysteresis curve representing the input/output characteristics of the excitation-vibration portion. When simulating the sounds of the wind instrument, the control signal corresponds to the blowing pressure applied to the mouthpiece of the wind instrument.
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