Simultaneous generation of various shaped Sound Spots with multiple linear speaker arrays

A Sound Spot which is a spot-like small area of high sound pressure level can be generated by adding the delay of an appropriate amount to each output sound from many loudspeakers. The cylindrical Sound Spot can be generated with two orthogonal axis loudspeaker arrays (64 channels) and the spherical Sound Spot can be generated with three orthogonal axis loudspeaker arrays (96 channels). The control of these two kinds of loudspeaker arrays, five axis loudspeaker arrays (160 channels) simultaneously, is achieved by plural computers synchronization. This paper reports on the generation of two kinds of Sound Spots simultaneously with five axis loudspeaker arrays.