| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique allowing sound generation characteristics to be evaluated precisely when a product to be developed is allowed to generate sound in an acoustic space where the installation of the product to be developed is assumed in a development stage of a sounding body, such as a musical instrument.SOLUTION: A user performs actual measurements 410 and 420 of sound generation characteristics of a currently available product 400 at a listening point of an acoustic space and an anechoic chamber and performs simulation 510 of a product to be developed 500 at the listening point. A speech processing unit 90 of a simulation device 1a performs differential calculation processing 210 for subtracting sound generation characteristics of the anechoic chamber from the sound generation characteristics of the acoustic space to obtain reflection sound characteristics in the acoustic space. Then, the speech processing unit 90 performs addition processing 220 for adding the obtained reflection sound characteristics to the sound generation characteristics by the simulation, and obtains an estimated transfer function H of the product to be developed 500 at the listening point of the acoustic space. |
