Musical tone synthesizing apparatus performing high-speed non-li

Details Musical tone synthesizing apparatus performing high-speed non-li Musical tone synthesizing apparatus performing high-speed non-li

1992-03-24

1993-11-30

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84DIG9, 84DIG10, 364723, G10H 712

Patent

active

052667340

ABSTRACT:
A musical tone synthesizing apparatus includes an excitation circuit, a resonator circuit, and a resampler. The excitation circuit generates an excitation signal, through a non-linear transformation, in response to an input signal supplied thereto. The resonator circuit resonates the excitation signal supplied thereto. The signal processing in the excitation circuit is executed in synchronization with a high sampling frequency N*Fs. The resampler converts the excitation signal of the high sampling frequency N*Fs into that of a normal frequency Fs. The excitation signal from the resampler, which has the normal sampling frequency Fs, is supplied to the resonator circuit. Accordingly, the resonator circuit can perform its operation at the normal sampling frequency Fs. The high-speed operation of the excitation circuit prevents the abnormal oscillation and the generation of an aliasing noise in the musical tone synthesizing apparatus.

REFERENCES:
patent: 4984276 (1991-01-01), Smith
patent: 5086475 (1992-02-01), Kutaragi et al.

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