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Electronic music system producing vibrato and tremolo effects

  • US 5,763,807 A
  • Filed: 09/12/1996
  • Issued: 06/09/1998
  • Est. Priority Date: 09/12/1996
  • Status: Expired due to Fees
First Claim
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1. An electronic music system adapted to generate tones of different pitch, amplitude and duration which, when reproduced, create musical sounds that emulate those produced by acoustic instruments, said system comprising:

  • A. a tone generator producing a sonic wave having a carrier of a predetermined frequency;

    B. means to generate an asymmetrical wave composed of a low-frequency sinusoidal wave having a predetermined amplitude and a frequency in a range producing a vibrato, said sinusoidal wave having superimposed thereon a secondary wave of low amplitude relative to that of the sinusoidal wave and having a frequency which is a second harmonic of the sinusoidal wave to impose a stepped staircase formation on the curvature of the sinusoidal wave; and

    C. means to frequency-modulate the sonic wave with said asymmetrical wave to periodically vary the frequency of the carrier above and below said predetermined frequency to impart vibrato to the resultant musical sound.

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