Electronic musical instrument for simulating wind instrument mus

Details Electronic musical instrument for simulating wind instrument mus Electronic musical instrument for simulating wind instrument mus

1993-08-18

1996-05-28

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84659, 84630, G10H 112, G10H 500

Patent

active

055213286

ABSTRACT:
An electronic musical instrument simulating a wind instrument is fundamentally configured by a loop circuit at least containing a linear portion and a non-linear portion. The linear portion simulates a pipe portion of the wind instrument, while the non-linear portion simulates a breath-blowing portion of the wind instrument so as to produce an excitation signal, which is supplied to the linear portion. By an interaction between the linear portion and the non-linear portion which is carried out while a signal circulates through the loop circuit, a sounding characteristic of the wind instrument is simulated. In order to accurately simulate a jet reed instrument (e.g., organ pipe), there are further provided a delay circuit and an edge tone generator. The delay circuit imparts a delay time to the output signal of the linear portion, and then, a delayed signal is supplied to the non-linear portion. The delay time corresponds to a time which is required when an air flow passing through a slit reaches an edge in the jet reed instrument. The edge tone generator generates a noise signal representing an edge tone (or an aeolian tone) which is unique to the jet reed instrument. The noise signal is mixed with the output signal of the non-linear portion, and then, a mixed signal is supplied to the linear portion. Thus, a sound of the jet reed instrument can be accurately simulated by a musical tone signal picked up from the loop circuit.

REFERENCES:
patent: 4649783 (1987-03-01), Strong et al.
patent: 4984276 (1991-01-01), Smith
patent: 5286913 (1994-02-01), Higashi
patent: 5308918 (1994-05-01), Yamauchi et al.
patent: 5373098 (1994-12-01), Kitayama et al.

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