Effects of Aircraft Noise: Research Update on Select Topics (2008) / Chapter Skim
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Chapter Five - Speech Interference and Aviation Noise
Chapter Five - Speech Interference and Aviation Noise
Pages 13-13
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The results demonstrate that, for 95% sentence intelligibility, normal vocal effort and a 2-m separation between talker and listener outdoors, the maximum Leq value associated with continuous noise is less than the maximum value for an environmental noise whose magnitude varies with time, such as an aircraft flyover. Therefore, when interpreting the amount of SI using the ANSI method or the guidelines of FICON or WHO, these methods will overestimate that amount of SI.
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