Musical tone waveform signal forming apparatus having pitch cont

Details Musical tone waveform signal forming apparatus having pitch cont Musical tone waveform signal forming apparatus having pitch cont

1991-02-14

1994-03-29

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84661, 84630, G10H 502

Patent

active

052986780

ABSTRACT:
A musical tone waveform signal forming apparatus comprises a waveform signal transmission section, a musical tone control signal input section and a pitch control section. The waveform signal transmission section comprises a plurality of signal transmission units which are connected in cascade one by one and each of which comprises first and second signal lines respectively serving as forward and backward paths of a waveform signal and a node portion for feeding back an output from the first signal line to an input side of the second signal line. At least one of the first and second signal lines serves as a signal delay line. The musical tone control signal input section receives the waveform signal from the waveform signal transmission section and a musical tone control signal for controlling musical tone parameters of a musical tone to be generated to change the waveform signal in accordance with the musical tone control signal and output the changed waveform signal to the waveform signal transmission section. The pitch control section changes delay times of the signal delay lines in accordance with a pitch signal, one of the tone control signal, for controlling a tone pitch of the musical tone to be generated.

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