公开(公告)号：US4924962A

公开(公告)日：1990-05-15

申请号：US71829

申请日：1987-07-10

申请人： Kenichi Terai ,  Shuji Saiki ,  Kousaku Murata ,  Katsuaki Satoh ,  Yoichi Kumura ,  Yasutoshi Nakama ,  Michiko Ogawa ,  Shuichi Obata

发明人： Kenichi Terai ,  Shuji Saiki ,  Kousaku Murata ,  Katsuaki Satoh ,  Yoichi Kumura ,  Yasutoshi Nakama ,  Michiko Ogawa ,  Shuichi Obata

IPC分类号： H04R1/28

CPC分类号： H04R1/2857 ,  H04R1/2842 ,  H04R1/2865

摘要： A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed at the other end of the acoustic duct facing the passenger compartment of a vehicle. The apparatus is arranged such that, F0 and Fs are substantially equal to each other. Where Fs is the lowest frequency in a frequency range within which the imaginary part of the acoustic impedance at the sound radiating surface of the speaker system in the direction of the space within the passsenger compartment is zero and F0 is the low-range resonance frequency of the speaker system itself in the free space.

摘要翻译： 一种用于具有扬声器系统的车辆的声音再现装置，所述扬声器系统由设置在所述声学导管的喉部处的至少一个声学导管和扬声器单元构成，所述扬声器系统形成在所述声学导管的另一端面对所述乘客室 车辆。 该装置被布置成使得F0和Fs彼此基本相等。 其中Fs是在扬声器系统的声辐射表面的声阻抗的虚部在乘客舱内的空间的方向上为零的频率范围内的最低频率，并且F0是低频共振频率 扬声器系统本身在自由空间。