VOICE REPRODUCING METHOD AND REPRODUCER USING LINE ARRAY SPEAKER UNIT

摘要

A multichannel audio system is constituted using at least one line array speaker unit where a plurality of speakers are arranged in line. Identical audio signals are fed to respective speakers with a specified lag to form a plurality of voice beams which are then reflected off the wall face or ceiling in a room thus forming a plurality of virtual sound sources around a listening position. On the other hand, the radiating direction and intensity of the voice beam are controlled such that a virtual image sound source (phantom) is located fixedly at a specified position based on the plurality of virtual sound sources. Voice beams being distributed in a sector form from a plurality of line array speaker units are formed and the plurality of line array speaker units are combined while being arranged appropriately in the horizontal, vertical and oblique directions thus realizing a surround audio system having a high degree of freedom with regard to setting of virtual sound source forming position.