THE IMPULSE RESPONSE DATA CREATING METHOD FOR SOUND FIELD SIMULATION

摘要

PROBLEM TO BE SOLVED: To provide impulse response data achieving more realistic spreads of sounds.;SOLUTION: The point echo diagram calculation section 902 adds fluctuation components matching probability distribution on the basis of fluctuation coefficients corresponding to at least one out of loudness indicating the sound directions, the sound absorption coefficient of air, and the reflection-absorption coefficient at the boundaries of sound fields. The point echo diagram calculation section 902 creates point echo diagram data D907 by using the sound reflection-absorption coefficients with the fluctuation components added. Accordingly, the impulse response data D909 created from the point echo diagram data D907 thus created adds natural spreads of the sound fields to the sound data D905.;COPYRIGHT: (C)2006,JPO&NCIPI