Musical tone waveform signal generating apparatus using a plural

Details Musical tone waveform signal generating apparatus using a plural Musical tone waveform signal generating apparatus using a plural

1993-10-21

1995-09-19

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

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

Patent

active

054517117

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.

REFERENCES:
patent: 5113743 (1992-05-01), Higashi
patent: 5117729 (1992-06-01), Kunimoto
patent: 5187313 (1993-02-01), Inoue
patent: 5256830 (1993-10-01), Takeuchi et al.
patent: 5286914 (1994-02-01), Kunimoto

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