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Confidence Intervals of L eq in the Case of Stationary Random Noise Measurements

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Abstract

A common practice in random noise measurements is to assume that the noise samples are normally distributed. Since the sound pressure level (L p) is related with the sound energy by a non linear equation, the distribution of the two variables will be different. If one assumes that the probability density function (pdf) of L p is normal, the pdf of noise energy is not and vice versa. A simple criterion based on statistical properties of sampled noise can be used for the determination of the kind of distribution of the measured noise. The case in which the noise energy emitted by the source, and the case in which the measured noise level is normally distributed are examined. For each case confidence intervals of the calculated equivalent level are calculated.

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References

  • Bendat, J. and Piersol, A.: 1986, Random Data: Analysis and Measurement Procedures, 2nd ed., John Wiley & Sons.

  • Bury, K.: 1975, Statistical Models in Applied Science, John Wiley & Sons.

  • Guttman, I.,Wilks, S. and Hunder, S.: 1971, Introductory Engineering Statistics, JohnWiley & Sons.

  • Malchaire, J. and Piette, A.: 1997, 'A comprehensive strategy for the assessment of noise exposure and risk of hearing impairment', Ann. Occup. Hyg. 41(4), 467-484.

    Google Scholar 

  • Skarlatos, D. and Drakatos, P.: 1992, 'On selecting the minimum observation time for determining the Leq of a random noise with a given level of confidence', J. Sound Vibration 152(1), 141-148.

    Google Scholar 

  • Skarlatos, D. and Manatakis, E.: 1989, 'Noise probability density functions for Poisson type traffic flow', Appl. Acoustics 27, 47-55.

    Google Scholar 

  • Skarlatos, D.: 1993, 'A numerical method for calculation of probability density function of Equivalent level in the case of traffic noise', Appl. Acoustics 38, 37-50.

    Google Scholar 

  • Skarlatos, D. and Drakatos, P.: 1988, 'Environmental noise-Annoyance in Patras, Greece', Environ. Monit. Assess. 11, 171-178.

    Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical and Aeronautics Engineering, University of Patras, Greece

    Dimitris Skarlatos

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  1. Dimitris Skarlatos
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Correspondence to Dimitris Skarlatos.

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Skarlatos, D. Confidence Intervals of L eq in the Case of Stationary Random Noise Measurements. Environ Monit Assess 85, 55–67 (2003). https://doi.org/10.1023/A:1023353000071

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  • DOI: https://doi.org/10.1023/A:1023353000071

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