title: Full scale model investigation on the acoustical protection of a balcony-like façade device (L).
abstract: The acoustical insertion losses produced by a balcony-like structure in front of a window are examined experimentally. The results suggest that the balcony ceiling is the most appropriate location for the installation of artificial sound absorption for the purpose of improving the broadband insertion loss, while the side walls are found to be the second best. Results also indicate that the acoustic modes of the balcony opening and the balcony cavity resonance in a direction normal to the window could have a great impact on the one-third octave band insertion losses. The maximum broadband road traffic noise insertion loss achieved is about 7 dB.
authors: Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
authors: Y G
authors: YG
authors: Tong
authors: S K
authors: SK
authors: Tang
authors: M K L
authors: MK
authors: Yeung
mesh_terms: D000042:Absorption; D000162:Acoustics / Q000295:instrumentation*; D003252:Construction Materials; D004867:Equipment Design; D005160:Facility Design and Construction; D009624:Noise, Transportation / Q000517:prevention & control*; D013018:Sound Spectrography