Electrical audio signal processing systems and devices – Sound effects – Reverberators
Reexamination Certificate
2011-08-23
2011-08-23
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Sound effects
Reverberators
C381S061000
Reexamination Certificate
active
08005234
ABSTRACT:
An impulse response synthesis method is carried out by a dispersion calculation process for calculating a dispersion of phase characteristics in association with a given room based on a volume of the room, a degree of sound absorption of the room, and a distance between a sound source and a receiving point arranged in the room, a noise creation process for creating a noise having the dispersion of the phase characteristics calculated in the dispersion calculation process, a trend addition process for adding a phase trend to the noise created by the noise creation process in accordance with the distance between the sound source and the receiving point and obtaining a phase characteristic of a minimum-phase component from the noise added with the phase trend, and a synthesis process for synthesizing an impulse response based on the phase characteristic of the minimum-phase component, the impulse response being used to create reverberation for the room.
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Fujita Hiroaki
Takahashi Yoshinori
Tohyama Mikio
Chin Vivian
Morrison & Foerster / LLP
Olaniran Fatimat O
Yamaha Corporation
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