Affiliation:
1. Universidade Federal do Rio Grande do Sul
2. Universidade Luterana do Brasil
Abstract
This work presents an experimental characterization of three types of ground commonly found in urban centers regarding their absorption properties with respect to sound propagation: asphalt, grassland and soil. A brief theoretical background is presented, and the experimental procedure is discussed in detail. With basis on experimental results, it is concluded that grassland ground is mostly absorbent for all tested frequencies, whereas asphalt and soil are reflexive for low frequencies and absorbent for high ones.
Publisher
Trans Tech Publications, Ltd.
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1 articles.
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