Musical tone signal forming apparatus

Details Musical tone signal forming apparatus Musical tone signal forming apparatus

1990-07-26

1992-10-20

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84661, G10H 114, G10H 502

Patent

active

051572184

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.

REFERENCES:
patent: 4475229 (1984-10-01), Frese
patent: 4736663 (1988-04-01), Wawrzynek et al.
patent: 4882965 (1989-11-01), McClish
patent: 4984276 (1991-01-01), Smith

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