Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2007-06-08
2009-08-11
Warren, David S. (Department: 2837)
Music
Instruments
Electrical musical tone generation
C084S626000, C084S630000, C084S660000, C084S662000
Reexamination Certificate
active
07572970
ABSTRACT:
A digital piano apparatus includes an input unit including a plurality of keys and a plurality of pedals, a sound source unit, a sound field synthesizing unit, and a speaker unit. The sound field synthesizing unit includes virtual sound source spot signal generating means for generating a plurality of virtual sound source spot signals of a number equivalent to the number of output channels in the speaker unit, the plurality of virtual sound source spot signals being used for forming reproduced sound fields of a grand piano on the basis of a plurality of tone signals supplied from the sound source unit; mixing means for mixing each virtual sound source spot signal with the remaining virtual sound source spot signals; and sound effect means for applying a sound effect by signal processing using impulse responses to the virtual sound source spot signals.
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Ando Tomoe
Gouhara Takayuki
Komori Shinichi
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Sony Corporation
Warren David S.
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