Parameters influencing low frequency impact sound transmission in dwellings |
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| Institution: | 1. ICIST, DECivil, IST, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;2. Acoustics Research Unit, School of Architecture, University of Liverpool, Liverpool L69 3BX, UK;1. EMPA, Laboratory for Acoustics/Noise Control, Überlandstrasse 129, 8600 Dübendorf, Switzerland;2. Acoustics Research Unit, School of Architecture, University of Liverpool, Liverpool L69 7ZN, UK;1. Luleå University of Technology, 97187 Luleå, Sweden;2. Simmons akustik och utveckling, Chalmers Teknikpark, 41288 Gothenburg, Sweden;3. WSP Acoustics, Ullevigatan 19, 41140 Gothenburg, Sweden;4. Lund University, Box 118, 22100 Lund, Sweden;1. Engineering and Architecture Department, University of Trieste, via Valerio 6/a, 34127 Trieste, Italy;2. AcusticaMente Designers Team, via Garibaldi 13/b, 31015 Conegliano (TV), Italy |
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| Abstract: | As sound and vibration fields in dwellings exhibit modal behaviour at frequencies below 200 Hz, a systematic investigation of measurement and prediction uncertainty associated with impact sound transmission at low frequencies must include the effects of: location of the impact, type of floor, edge conditions, floor and room dimensions, room absorption and position of the receiver. Experimentally validated analytical models, described in a companion paper, have been used in an extensive investigation of impact sound transmission through rectangular homogeneous concrete floors and floating floors. The models were used to describe the effect of modal coupling and then to perform parametric and statistical studies aimed to identify the main factors affecting low frequency impact sound transmission. |
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| Keywords: | Impact sound transmission Low frequency Floors Dwellings Variance |
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