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Digital Signal Processing System to Improve the Sound Quality of a Car Cabin
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English
Abstract
A digital signal processing system has been developed in order to investigate algorithms for improving sound quality of car audio systems. This system, with external program memories, is able to implement different algorithms by simply changing its programs. Functions of sound field compensation and sound creation are realized by this system. As a result of examination of the system, it was confirmed that our phase compensation method is effective for improving frequency characteristics in automobile interiors.
Authors
- Fujio Hayakawa - Industrial Electronics and Systems Development Lab., Mitsubishi Electric Corp.
- Yoshiharu Morihiro - Industrial Electronics and Systems Development Lab., Mitsubishi Electric Corp.
- Mitsuo Shimotani - Industrial Electronics and Systems Development Lab., Mitsubishi Electric Corp.
- Masahiro Hibino - Industrial Electronics and Systems Development Lab., Mitsubishi Electric Corp.
Citation
Hayakawa, F., Morihiro, Y., Shimotani, M., and Hibino, M., "Digital Signal Processing System to Improve the Sound Quality of a Car Cabin," SAE Technical Paper 890258, 1989, https://doi.org/10.4271/890258.Also In
References
- Persoon E.H.J. Vandenblucke C.J.B. “Digital Audio:Examples of the Application of the ASP Integrate Signal Processor” Philips Tech. Rev. 42 6/7 Apr. 1986
- Hibino M. Hayakawa F. Shima K. “Subjectuve Evaluation and Acoustic Measurement of Sound Quality for Car Radio Systems” SAE Paper, 850161 1985
- Shima K. Hibino M. Iwamoto Y. “A Sound Field Effector for Car Audio” IEEE Trans. Comsumer Electronics 26 August 1980
- Blind H. Geddes E. “Equalized Sound Power (ESP) Auto-Sound System” SAE Paper 850167 USA 1985