ACOUSTIC SIGNAL REPRODUCTION SYSTEM

摘要

PURPOSE:To correct an acoustic characteristic simply in a short time when a listening point or a speaker installation position is revised or an acoustic characteristic of an acoustic signal reproduction space is revised. CONSTITUTION:An impulse sound generating means 18 generates an impulse sound for each speaker and the impulse sound is propagated in an acoustic signal reproduction space and measured by an impulse sound measurement means 13, an impulse sound time difference detection means 14 detects a time difference of an impulse sound arrival time from each speaker to a remote controller 11 and an impulse sound pressure difference detection means 15 detects a difference from the sound pressure for each speaker unit at the listening point. The detection result is sent to an acoustic signal reproduction device 16, and a 1st acoustic signal correction means 19 and a 2nd acoustic signal correction means 20 based thereon correct the acoustic signal sent from a reproduction acoustic signal source 22 and sends the reproduction signal to an acoustic signal reproduction means 21.