Electronic musical instrument of digital processing type

Details Electronic musical instrument of digital processing type Electronic musical instrument of digital processing type

1980-05-09

1982-09-28

Truhe, J. V.

Music

Instruments

84 125, 84 103, G10H 102

Patent

active

043512208

ABSTRACT:
In an electronic musical instrument of a digital processing type, an operation of a key causes the generation of a digital value corresponding to the operated key and a tone having a frequency determined by that digital value is produced. The instrument comprises a key assigner which assigns the operated keys from among a large number of keys to a small number of channels, which small number is a number of maximum available tones to be produced simultaneously. The instrument further comprises a modifying value generator for generating modifying values for the respective channels, the value being a first value upon key operation and subsequently varying to a second value to provide an attack pitch fluctuation effect. The key assigner and the modifying value generator are of a time division multiplexing type with the channels being defined by the corresponding time slots.

REFERENCES:
patent: 3929053 (1975-12-01), Deutsch
patent: 3979996 (1976-09-01), Tomisawa et al.
patent: 4103581 (1978-08-01), Deutsch
patent: 4122743 (1978-10-01), Tomisawa et al.
patent: 4152966 (1979-05-01), Deutsch

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