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- W1990202346 abstract "In this paper a model of the sound transmission characteristics of a conventional circumaural passive ear protector is presented for low frequency noise. It includes the effects of porous sound absorption material within the device as well as sound leakage. A theoretical study based on the model shows that the presence of sound absorption material effectively acts to increase the volume compliance of the system, thus decreasing its resonance frequency. The role of leakage on the other hand is mainly to shift the resonance to a higher frequency depending on the equivalent leakage diameter. Experimental results are provided in support of the theoretical predictions. The model is useful in providing an understanding of the mechanisms of conventional passive ear defenders and can be employed to guide their design. The modelling can also be extended to study and aid in the development of communication and active noise control ear protectors." @default.
- W1990202346 created "2016-06-24" @default.
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- W1990202346 date "2002-05-01" @default.
- W1990202346 modified "2023-09-22" @default.
- W1990202346 title "The Mechanisms of Passive Ear Defenders" @default.
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- W1990202346 doi "https://doi.org/10.1260/09574560260369666" @default.
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