Parametric study of the sound insulation performance of a plenum window

Shiu Keung Tang, D. Suen, S. K. Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

The sound insulation performance of a specifically designed façade device, which allows natural ventilation but can provide relatively high sound insulation, is studied experimentally in the present study. The experiment was carried out in two coupled rooms with one of them very reverberant and the other made semi-anechoic. The former acted as the receiver room and the latter contained a linear loudspeaker array as the noise source. The full scale façade device was installed on the concrete brick wall between the coupled rooms. The effect of the size of the device opening (for ventilation) on the sound insertion loss was then determined by the difference between the average intensities with and without the device (an opened window). The present results show that the present façade device can offer additional acoustical protection of ~12 to 13dBA compared to that resulted from the conventional openable window design when exposed to traffic noise. The introduction of sound absorption materials at the top internal surface of the window cavity in general can result in a maximum of 2dB extra benefit.
Original languageEnglish
Title of host publication24th National Conference on Noise Control Engineering 2010, Noise-Con 10, Held Jointly with the 159th Meeting of the Acoustical Society of America
Pages1835-1842
Number of pages8
Volume3
Publication statusPublished - 1 Dec 2010
Event24th National Conference on Noise Control Engineering 2010, Noise-Con 2010, Held Jointly with the 159th Meeting of the Acoustical Society of America - Baltimore, MD, United States
Duration: 19 Apr 201021 Apr 2010

Conference

Conference24th National Conference on Noise Control Engineering 2010, Noise-Con 2010, Held Jointly with the 159th Meeting of the Acoustical Society of America
Country/TerritoryUnited States
CityBaltimore, MD
Period19/04/1021/04/10

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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