FILTER EFFECT IMPARTING DEVICE, ELECTRONIC MUSICAL INSTRUMENT, AND CONTROL METHOD FOR ELECTRONIC MUSICAL INSTRUMENT
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United States of America Patent
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May 19, 2022
app pub date -
Jan 17, 2020
filing date -
Jan 17, 2020
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Abstract
A filter effect imparting device includes a characteristic-variable filter that has a variable filter characteristic corresponding to a coefficient group composed of a plurality of filter coefficients, and a control circuit that changes the coefficient group from a first coefficient group that is set as a start point to a second coefficient group that is set as an end point. The control circuit retains the coefficient group during the change and, in newly setting a third coefficient group as the end point, the control circuit sets the retained coefficient group as the start point.
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