| 摘要 |
PURPOSE:To provide a sound field corrective device capable of generating a satisfactory listening condition for music in a car. CONSTITUTION:The acoustic signal of a CD player, etc., from a sound source 1 is reproduced and outputted to a microphone 8 for measurement located in the neighborhood of a head part for listening in the car 12 by right and left speakers 6, 7 as a rerproducing acoustic signal. Also, the microphone 8 for measurement fetches the reproducing acoustic signal. Signal processing parts 2, 3 including adaptive FIR filters input the acoustic signal from the sound source 1, and also, adaptive control(adaptive processing) on at least one of the frequency characteristic, arrival time, and impulse response of the reproducing acoustic signal deviated corresponding to sound field reproducing space by the speakers 6, 7 and the position of a listener is performed based on a fetched reproducing acoustic signal. |
