| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an acoustic system using a loudspeaker device for suppressing attenuation of high pass sound and occurrence of a standing wave, and for enjoying richer sound field expressions according to the kinds of reproduction sounds. <P>SOLUTION: The acoustic system includes: first and second loudspeaker devices including a first loudspeaker unit integrally formed by using isotropic materials, and equipped with a first diaphragm having a first belt-like reinforcing part with Young's modulus which is higher than that of a second region section in a first region section, a second loudspeaker unit integrally formed by using the isotropic materials, and equipped with a second diaphragm having a second belt-like reinforcing part with Young's modulus which is higher than that of a fourth region section, in a third region section, a cabinet in which the first and second loudspeaker units are arranged so as to be lined up, and a turning mechanism for turning the first diaphragm in its circumferential direction, and for changing the direction of the first reinforcing part, respectively; an amplifier means; and a turning control means for controlling driving of the turning mechanism on the basis of a voice signal. <P>COPYRIGHT: (C)2010,JPO&INPIT |
