Formant filter generator for an electronic musical instrument

Details Formant filter generator for an electronic musical instrument Formant filter generator for an electronic musical instrument

1986-04-02

1987-10-20

Witkowski, S. J.

Music

Instruments

84 123, 84DIG9, 364419, 364724, G10H 112, G10H 700

Patent

active

047006030

ABSTRACT:
In the production of a desired musical waveform by combining harmonic components corresponding to respective harmonic orders, the cut-off harmonic order q.sub.c, each harmonic component value is controlled by selecting the level Ha and the slope of the Formant filter characteristic. The cut-off harmonic order q.sub.c, the level Ha and the slope value can each be varied over a predetermined range. These operations can be performed with a simple circuit arrangement involving a small number of memories. Therefore, the present invention greatly contributes to the reduction of the size and the cost of electronic musical instruments.

REFERENCES:
patent: 4548119 (1985-10-01), Wachi et al.
patent: 4554858 (1985-11-01), Wachi et al.

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