Tone signal synthesizer employing a closed wave guide network

Details Tone signal synthesizer employing a closed wave guide network Tone signal synthesizer employing a closed wave guide network

1995-05-08

1996-09-10

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84630, 84659, G10H 700, G10H 106

Patent

active

055548130

ABSTRACT:
In a closed wave guide network having a bidirectional signal transmitting channel section and a signal junction section, signal delay time is variably controlled by a first parameter group so as to control the resonance frequency characteristics of the wave guide network. A signal excitor is connected to the wave guide network so that an excited signal is supplied to the network. The excitation frequency of the excitor is controlled in accordance with a second parameter group. There are also provided a combination determination section which, in correspondence to the pitch of a tone to be generated, determines a combination of the first parameter group to be used in the wave guide network and the second parameter group to be used in the excitor, and a parameter generator which, in accordance with the combination determined by the combination determination section, generates and supplies individual parameters of the first and second parameter groups. The pitch of a tone to be generated is determined by a combination of the resonance characteristics of the wave guide network and the excitation frequency of the signal excitor.

REFERENCES:
patent: 4984276 (1991-01-01), Smith
patent: 5117729 (1992-06-01), Kunimoto
patent: 5187313 (1993-02-01), Inoue
patent: 5220117 (1993-06-01), Yamada et al.
patent: 5286913 (1994-02-01), Higashi

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