Musical tone signal forming apparatus
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United States of America Patent
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-
Oct 20, 1992
Grant Date -
N/A
app pub date -
Jul 26, 1990
filing date -
Jul 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic musical instrument provides a musical tone signal forming apparatus in order to sound a desirable musical tone. This apparatus includes a closed-loop wherein a signal is repeatedly circulating while being delayed by a delay circuit. In addition, the signal circulating the closed-loop is subject to the non-linear conversion. Thus, the signal picked up from the closed-loop can be controlled in response to the desirable non-linear characteristic. Preferably, the signal circulating the closed-loop is a musical tone waveform signal. For example, the musical tone waveform signal is varied in response to the feature of string, string bowing pressure and the like. Further, hysteresis characteristic simulating the statical and dynamic frictions to be occurred between the string and bow of the string bowing instrument can be imported to the non-linear characteristic.
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