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Application of Acoustic Intensity Measurement to High Frequency Interior Noise
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English
Abstract
This paper describes the application of an acoustic intensity measurement method to high-frequency interior noise. Technical problems in applying an averaging technique via surface scanning to high-frequency interior noise were conquered, and detailed quantitative contribution analysis of interior surfaces was made possible. Based on the analysis of a small passenger car, the effectiveness of additional noise control treatment can be roughly estimated, and an acoustic confort of the car was improved by a minimum additional treatment required.
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Citation
Hata, S., Takahashi, M., Utsunomiya, N., and Sakata, H., "Application of Acoustic Intensity Measurement to High Frequency Interior Noise," SAE Technical Paper 830342, 1983, https://doi.org/10.4271/830342.Also In
References
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- Chung J.Y. Blaser, D.A. “Recent Developments in the Measurement of Acoustic Intensity using the Cross-spectral Method” SAE 810396
- Pope, J. Hickling, R. Feldmaier, D.A. Blaser, D.A. “The Use of Acoustic-Intensity Scans for Sound Power Measurement and for Noise Source Identification in Surface Transportation Vehicles.” SAE 810401
- Abe T. Anderton, D. “Digital Acoustic Intensity Techniques in Gasoline Engine Noise Studies” SAE 820363
- Croker, M.D. “Digital Processing Revitalises Old Techniques” SAE 820366
- Fahy, F.J. “Measurement of Acoustic Intensity using the Cross-Spectral Density of two Microphone Signals” J. Acoust. Soc. Am. 62, 1613-1616 1977
- Chung, J.Y. “Cross-Spectral Method of measuring Acoustic Intensity without error caused by phase mismatch” J. Acoust. Soc. Am. 64, 1613-1616 1978