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3-D Loud-Speaker Systems for Automotive Use
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English
Abstract
In order to reproduce heavy bass with a small diameter loudspeaker for automotive use similar to the intensity and low distortion of a home-use Hi-Fi system, a large volume velocity must be obtained. This is done by lowering the minimum resonant frequency of system and by linearly expanding the amplitude range of diaphragm.
We have developed a 3-D woofer system using a centering suspension that consists of four tubes of square cross-section continuously laid in the circumferential direction and a cone suspension that has V-shaped pleats in both of the circumferential and diameter directions for the vibration system. The results are good acoustic characteristics in an automotive cabin that are low in distortion with high output in the low frequency range up to 100Hz.
Authors
- M. Hasegawa - Acoustic Research Laboratory, Matsushita Electric Industrial Co., Ltd.
- H. Takewa - Acoustic Research Laboratory, Matsushita Electric Industrial Co., Ltd.
- Y. Kimura - Acoustic Research Laboratory, Matsushita Electric Industrial Co., Ltd.
- A. Okada - Acoustic Products Div., Matsushita Electronic Components Co., Ltd.
Citation
Hasegawa, M., Takewa, H., Kimura, Y., and Okada, A., "3-D Loud-Speaker Systems for Automotive Use," SAE Technical Paper 850162, 1985, https://doi.org/10.4271/850162.Also In
References
- Olson H. F. ELEMENTS OF Acoustical Engineering 2nd 1947 123 183
- Ishikawa S. Hasegawa M. Atoji N. Araki M. “A Method of Sound-Field Simulation for Automobile Passenger Compartments” Reprint No. 840085 S.A.E.
- Kimura Y. Nakama Y. Kikuchi Y. Soma J. Funabashi T. Kinoshita M. “An Automatic Graphic Equalizer for Car Audio Systems” Reprint No. 840081 S.A.E.