Digital tone mixer

Details Digital tone mixer Digital tone mixer

1992-01-17

1993-07-27

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84665, 84DIG23, G10H 108, G10H 146

Patent

active

052312402

ABSTRACT:
A digital tone mixer includes a first digital volume regulator electrically connected to a first tone generator and having a binary signal output corresponding to the desired amplitude of a pulsating tone signal from the first tone generator; a second digital volume regulator electrically connected to a second tone generator and having a binary signal output corresponding to the desired amplitude of a pulsating tone signal from the second tone generator; a binary adder for summing the binary signal outputs of the first and second volume regulators; and a pulse rate modulator receiving a binary output from the binary adder and generating a pulse train which has a pulse density corresponding to the binary output of the binary adder. The digital tone mixer has a very stable output characteristic.

REFERENCES:
patent: 4934239 (1990-06-01), Tsai

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