Musical tone waveform signal generating apparatus

Details Musical tone waveform signal generating apparatus Musical tone waveform signal generating apparatus

1995-02-22

1995-12-19

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84622, 84660, 84DIG10, G10H 700, G10H 108

Patent

active

054770041

ABSTRACT:
A musical tone waveform signal generating apparatus in which a waveform signal is circulated to generate a musical tone waveform signal. The apparatus includes an excitation portion for mixing an excitation control signal with the waveform signal and for non-linearly converting the mixed waveform signal and a signal transmission portion coupled with the excitation portion to feed back the converted waveform signal to the excitation portion with delay of a predetermined time for causing on the converted waveform signal a resonance frequency corresponding with a pitch of a musical tone to be generated. In the excitation portion, the non-linear conversion of the mixed waveform signal is effected by a plurality of non-linear tables to generate various kinds of musical tone waveform signals, and the converted waveform signal is controlled by a tone color control signal to simulate the musical tone as a natural musical tone created by performance of a musical instrument such as a wind instrument, a brass-wind instrument, a stringed instrument or the like.

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patent: 4649783 (1987-03-01), Strong et al.
patent: 4736663 (1988-04-01), Wawrzynek et al.
patent: 4868869 (1989-09-01), Kramer
patent: 4984276 (1991-01-01), Smith
patent: 5117729 (1992-06-01), Kunimoto
patent: 5187313 (1993-02-01), Inoue

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