METHOD AND DEVICE FOR CALCULATING ADDITIONAL SOUND VOLUME OF VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an additional sound volume calculating system capable of greatly reducing tuning man hour for an additional sound volume from an active type effective sound generator.SOLUTION: A method includes calculating a sound volume of effective sound output from speakers in a cabin with an active type effective sound generator on-vehicle and added to real engine acceleration sound. There are included: a cabin engine acceleration sound extracting device (2) for extracting order components according to a rotation frequency about engine acceleration sound measured in the cabin; an ideal acceleration sound creating device (3) for creating ideal acceleration sound close to real engine acceleration sound, based on the order components of the engine acceleration sound; a binaural measuring device (1) for outputting sound from a reference sound source from the speakers and recording so as to calculate transfer characteristic of each of the speakers; and a speaker reproduction sound calculating device (4) for calculating a sound volume of reproduction sound output from the speakers as effective sound, based on the ideal acceleration sound and the transfer characteristic of each of the speakers.