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(11) | EP 2 079 080 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Tone synthesis apparatus and method |
| (57) Tone synthesis apparatus synthesizes a tone of a wind instrument generated in response
to vibration of a reed contacting a lip during a performance of the wind instrument.
First arithmetic operation section solves a motion equation (A1) representative of
behavior of the reed in an equilibrium state with external force acting on the lip
and a second motion equation (A2) representative of behavior of the lip in the equilibrium
state, to thereby calculate displacement yb(x), y0(x) of the lip and reed in the equilibrium
state. Second arithmetic operation section solves a motion equation of coupled vibration
of the lip and reed with calculation results of the first arithmetic operation section
used as initial values of the displacement yb(x), y0(x) of the lip and reed, to thereby
calculate the displacement y(x, t) of the reed. Tone is synthesized on the basis of
the displacement y(x, t) calculated by the second arithmetic operation section.
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