Patent ID: 8150068
Filing Date: 2012-04-03
Classification: H04R,H04S

Abstract:
1. An array speaker system, comprising: array speakers which generate sound beams having a plurality of different directivities for generating a surround sound source containing front channels and rear channels by utilizing a wall reflection; a frequency band dividing unit which divides a signal on the front channels into a first high frequency band signal and a first low frequency band signal at a first crossover frequency, and divides a signal on the rear channels into a second high frequency band signal and a second low frequency band signal at a second crossover frequency; a first outputting unit which shapes the first high frequency band signal in the signal on the front channels in a frequency band higher than the first crossover frequency and the second high frequency band signal in the signal on the rear channels in a frequency band higher than the second crossover frequency into a sound beam, and then outputs shaped signals; and a second outputting unit outputs the first low frequency band signal in the signal on the front channels in a frequency band lower than the first crossover frequency and the second low frequency band signal in the signal on the rear channels in a frequency band lower than the second crossover frequency not to shape the signals into the sound beam; wherein the second crossover frequency is set to a higher frequency than the first crossover frequency.