| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an acoustic device in vehicle requiring less alteration when applied to an existing vehicle structure, able to widen the adjusting range of the tone quality of sounds introduced into a cabin, and able to be established without changing the suction system of an engine. <P>SOLUTION: There is included a sound collection system 10 in which the dash panel 3, and is provided with hole(s) 31 to collect sounds emitted from the surface of a surge tank 7 near the hole(s) 31 of the dash panel 3. Inside the sound collection system 10, resonators 41, 41 are installed to adjust the tone quality of sounds introduced into the holes 31. Resonation pipes 51 and 52 for adjusting the tone quality are accommodated inside a cowl 5, and the sounds collected near the holes 31 in the sound collection system 10 are guided to the resonation pipes 51 and 52, and the sound having undergone a tone quality adjustment by the resonation pipes is introduced into the cabin 2 via holes 53 and 54 formed in the cowl 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
