Apparatus for combining stored waveforms to synthesize musical t

Details Apparatus for combining stored waveforms to synthesize musical t Apparatus for combining stored waveforms to synthesize musical t

1991-03-19

1993-06-08

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84659, 84694, 84DIG10, G10H 502

Patent

active

052181561

ABSTRACT:
A musical tone synthesizing apparatus comprising FM operators and connection control device. At least one of the FM operators comprises a waveform memory, phase data generation device, and output inversion device. The waveform memory stores fundamental waveform data. The phase data generation device generates phase data as an address signal for accessing the waveform memory on the basis of a musical tone designation signal and a modulation signal inputted from an external circuit. The output inversion device selects whether a waveform signal read out from the waveform memory is outputted after sign inversion, or is outputted directly. The connection control device arbitrarily combine connections of the FM operators.

REFERENCES:
patent: 4249447 (1981-02-01), Tomisawa
patent: 4297933 (1981-11-01), Nishimoto
patent: 4554857 (1985-11-01), Nishimoto
patent: 4643066 (1987-02-01), Oya

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