Method of creating reverberation by estimation of impulse...

Details Method of creating reverberation by estimation of impulse... Method of creating reverberation by estimation of impulse...

2008-05-06

2008-05-06

Mei, Xu (Department: 2615)

Electrical audio signal processing systems and devices

Sound effects

Reverberators

C381S061000, C084S630000, C084S707000

Reexamination Certificate

active

07369663

ABSTRACT:
The present invention is directed to creating sound reverberation. In accordance with a preferred embodiment, an apparatus estimates an impulse response for use in reproduction of a sound in a desired acoustic space. In particular, the apparatus collects space information concerning an acoustic space and point information indicating positions of a sound generation and reception points in the acoustic space, estimates a set of acoustic ray paths of the sound traveling from the sound generation point to the sound reception point, acquires directivity information indicating an acoustic directivity of the sound generation point and the sound reception point, estimates an acoustic intensity of each acoustic ray path and weights each acoustic intensity by the acquired directivity information, and determines the impulse response based on directions of the respective acoustic ray paths toward the sound reception point and the weighed acoustic intensities of the respective acoustic ray paths.

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