Music – Instruments
Patent
1979-11-09
1981-06-09
Witkowski, Stanley J.
Music
Instruments
84 124, G10H 102
Patent
active
042717426
ABSTRACT:
An electronic sound generator is developed for generating a sound similar to that of ANGKLONG (Indonesian terms), which comprises a circuit for generating a series of consequtive rectangular waves. A plurality of envelope wave generation circuits each produce an envelope wave having the same repeating cycle as that of each said rectangular wave and, one or more sound source circuits are used for generating signals substantially equal to the output waves of angklong, circuits in each of which an output of a sound source circuit is modulated by the relevant envelop wave. A loudspeaker sounds the modulated signal as a musical sound. In a record embodiment the sound generator further comprises a first gate to which the modulated signal is directly applied, a second gate is connected in series with the volume and/or tone control circuit, means for opening said first and second gates alternatively and a means for combining the outputs of said first and second gates to provide a musical sound from the loudspeaker.
REFERENCES:
patent: 3746774 (1973-07-01), Adachi
patent: 3821458 (1974-06-01), Schreier
patent: 3971283 (1976-07-01), Wayne, Jr.
patent: 4012702 (1977-03-01), Weber
patent: 4178825 (1979-12-01), Deutsch
patent: 4181059 (1980-01-01), Weber
patent: 4194426 (1980-03-01), Deutsch et al.
Matsuura Yoshiaki
Sakashita Masao
Isen Forester W.
Kabushiki Kaisha Kawai Gakki Seisakusho
Witkowski Stanley J.
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