2015
DOI: 10.12693/aphyspola.128.a-36
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Sound Diffraction Over Noise Barriers with Added Devices Installed on the Top Edge

Abstract: Airborne sound insulation index of the noise barrier panel and the sound absorption coefficient of the barrier surface are the acoustic parameters that are usually determined in specialized laboratories, however they can be also determined in situ. Acoustic characteristics of a barrier include also the diffraction index difference determined from comparison of barriers with plain top edges and barriers with added devices installed on the top edge. The index is determined from the impulse response values determ… Show more

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Cited by 2 publications
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“…Heavy rain, snow, blizzards or fog may render nearby objects close to invisible. Topographical barriers such as hills and ridges may diffract or block soundwaves (Piechowizc 2015), as well as impede vision.…”
Section: The Audio-visual Aspectmentioning
confidence: 99%
“…Heavy rain, snow, blizzards or fog may render nearby objects close to invisible. Topographical barriers such as hills and ridges may diffract or block soundwaves (Piechowizc 2015), as well as impede vision.…”
Section: The Audio-visual Aspectmentioning
confidence: 99%