Sound effect imparting device for an electronic musical instrument
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United States of America Patent
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Sep 25, 1984
Grant Date -
N/A
app pub date -
Sep 21, 1982
filing date -
Sep 22, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sound effect imparting device for an electronic musical instrument is capable of imparting a plurality of desired sound effect such as vibrato and reverberation effects to a digital musical tone generated from the electronic musical instrument. The device comprises a digital arithmetic operation unit constructed with a combination of adders, multipliers, delay circuits, etc., a control unit, a parameter memory and a read-out unit. By control data and parameter data which are respectively read out from the control unit and the parameter memory by means of the read-out unit, switching of the operation mode of the digital arithmetic operation unit is controlled in a time-sharing manner, whereby a plurality of sound effects are imparted to a musical tone through digital arithmetic operations.
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