PROBLEM TO BE SOLVED: To provide a loudspeaker device provided with a microphone array and a speaker array which makes the location of an utterer coincide with the direction of hearing a manified voice by using a directional control function by the arrays.
SOLUTION: Four loudspeaker units 1A, 1B, 1C, 1D are connected in single file. A voice uttered by an utterer 200A is collected by the loudspeaker unit 1A at a left end. The loudspeaker unit 1A transfers this audio signal to the respective loudspeaker units 1B, 1C, 1D. Furthermore, a control unit 2 sends a delay pattern for making the virtual focal point of emission sound beams coincide with the utterer 200A with respect to the loudspeaker units 1B, 1C, 1D. The loudspeaker units 1B, 1C, 1D beam-control the utterance audio signal transferred from the loudspeaker unit 1A by using the delay pattern sent from the control unit 2 for emitting sound.
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