All Outputs (57)

Active cancellation of sound generated by finite length coherent line sources using piston-like secondary source arrays (2019)
Journal Article
Hu, Q., & Tang, S. K. (2019). Active cancellation of sound generated by finite length coherent line sources using piston-like secondary source arrays. The Journal of the Acoustical Society of America, 145(6), 3647-3655. https://doi.org/10.1121/1.5112761

The active cancellation of the sound generated by finite length coherent line sources is investigated numerically in the present study. A secondary source consists of a central circular core enclosed within an annulus is proposed. It is demonstrated... Read More about Active cancellation of sound generated by finite length coherent line sources using piston-like secondary source arrays.

Empirical prediction of traffic noise transmission loss across plenum windows (2019)
Journal Article
Li, X., Tong, Y. G., Tang, S. K., & Lau, K. K. (2019). Empirical prediction of traffic noise transmission loss across plenum windows. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 151, 45-54. https://doi.org/10.1016/j.apacoust.2019.03.004

A parametric study on the traffic noise transmission loss across plenum windows was carried out experimentally in this investigation in an attempt to establish a simple empirical model for predicting this transmission loss. A total of fourteen full s... Read More about Empirical prediction of traffic noise transmission loss across plenum windows.

Modelling noise annoyance responses to combined sound sources and views of sea, road traffic, and mountain greenery (2018)
Journal Article
Chau, C. K., Leung, T. M., Xu, J. M., & Tang, S. K. (2018). Modelling noise annoyance responses to combined sound sources and views of sea, road traffic, and mountain greenery. The Journal of the Acoustical Society of America, 144(6), 3503-3513. https://doi.org/10.1121/1.5083833

This paper studies the effect of human perception of visual and audio settings in an urban environment on annoyance. Video clips were projected onto a window panel of a living room to simulate neighborhood views containing different percentages of se... Read More about Modelling noise annoyance responses to combined sound sources and views of sea, road traffic, and mountain greenery.

On low frequency sound propagation across closely coupled narrow cavities along an infinite duct and the similarity in stopband cut-on frequencies (2018)
Journal Article
Tang, Y., & Tang, S. K. (2019). On low frequency sound propagation across closely coupled narrow cavities along an infinite duct and the similarity in stopband cut-on frequencies. Journal of Sound and Vibration, 443, 411-429. https://doi.org/10.1016/j.jsv.2018.11.049

The propagation of sound across closely coupled narrow rectangular cavities in an infinitely long duct is studied numerically using finite-element simulation and the method of mode matching in the present investigation. Sound frequencies below the fi... Read More about On low frequency sound propagation across closely coupled narrow cavities along an infinite duct and the similarity in stopband cut-on frequencies.

The effects of indoor plants and artificial windows in an underground environment (2018)
Journal Article
Kim, J., Cha, S. H., Koo, C., & Tang, S. K. (2018). The effects of indoor plants and artificial windows in an underground environment. Building and Environment, 138, 53-62. https://doi.org/10.1016/j.buildenv.2018.04.029

People have negative perceptions of underground environments on account of the absence of natural elements. To alleviate negative perceptions, many investigators have proposed indoor plants and artificial windows. Although a few studies have provided... Read More about The effects of indoor plants and artificial windows in an underground environment.

Reduction of sound transmission across plenum windows by incorporating an array of rigid cylinders (2017)
Journal Article
Tang, S. K. (2018). Reduction of sound transmission across plenum windows by incorporating an array of rigid cylinders. Journal of Sound and Vibration, 415, 25-40. https://doi.org/10.1016/j.jsv.2017.11.027

The potential improvement of plenum window noise reduction by installing rigid circular cylinder arrays into the window cavity is investigated numerically using the finite-element method in this study. A two-dimensional approach is adopted. The sound... Read More about Reduction of sound transmission across plenum windows by incorporating an array of rigid cylinders.

Developing a multivariate model for predicting the noise annoyance responses due to combined water sound and road traffic noise exposure (2017)
Journal Article
Leung, T. M., Chau, C. K., Tang, S. K., & Xu, J. M. (2017). Developing a multivariate model for predicting the noise annoyance responses due to combined water sound and road traffic noise exposure. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 127, 284-291. https://doi.org/10.1016/j.apacoust.2017.06.020

People in an urban environment are exposed to different types of natural and man-made sounds. Human sound perceptions due to exposure to a single noise source, in particular road traffic and aircraft noises, have been investigated for a long time. Ho... Read More about Developing a multivariate model for predicting the noise annoyance responses due to combined water sound and road traffic noise exposure.

The effects of neighborhood views containing multiple environmental features on road traffic noise perception at dwellings (2017)
Journal Article
Leung, T. M., Xu, J. M., Chau, C. K., Tang, S. K., & Pun-Cheng, L. S. (2017). The effects of neighborhood views containing multiple environmental features on road traffic noise perception at dwellings. The Journal of the Acoustical Society of America, 141(4), 2399-2407. https://doi.org/10.1121/1.4979336

The importance of non-acoustical factors including the type of visual environment on human noise perception becomes increasingly recognized. In order to reveal the relationships between long-term noise annoyance and different types of neighborhood vi... Read More about The effects of neighborhood views containing multiple environmental features on road traffic noise perception at dwellings.

Vortex sound radiation in a flow duct with a dipole source and a flexible wall of finite length (2017)
Journal Article
Chiang, Y. K., Choy, Y. S., & Tang, S. K. (2017). Vortex sound radiation in a flow duct with a dipole source and a flexible wall of finite length. The Journal of the Acoustical Society of America, 141(3), 1999-2010. https://doi.org/10.1121/1.4978521

The noise attenuation of fan-ducted noise at low blade-passage frequency remains a challenge. The present study investigates the noise reduction mechanism of a tensioned membrane housing device that directly controls the sound radiation from the doub... Read More about Vortex sound radiation in a flow duct with a dipole source and a flexible wall of finite length.

A review on natural ventilation-enabling façade noise control devices for congested high-rise cities (2017)
Journal Article
Tang, S. K. (2017). A review on natural ventilation-enabling façade noise control devices for congested high-rise cities. Applied Sciences, 7(2), Article 175. https://doi.org/10.3390/app7020175

This review summarizes the current status of the research and development of natural ventilation-enabling noise control devices for use on the façades of high-rise residential buildings in congested cities. These devices are important for a sustainab... Read More about A review on natural ventilation-enabling façade noise control devices for congested high-rise cities.

Low frequency interactions between coupled narrow sidebranch arrays and the resulted sound transmission losses (2016)
Journal Article
Yu, H. M., & Tang, S. K. (2017). Low frequency interactions between coupled narrow sidebranch arrays and the resulted sound transmission losses. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 117, 51-60. https://doi.org/10.1016/j.apacoust.2016.10.020

The low frequency sound interactions between coupled narrow sidebranch arrays installed in an infinitely long rectangular duct are investigated numerically using the finite-element method in the present study. The corresponding transmission losses ac... Read More about Low frequency interactions between coupled narrow sidebranch arrays and the resulted sound transmission losses.

Sound transmission across a plenum window with an active noise cancellation system (2016)
Journal Article
Tang, S. K., Tong, Y. G., & Tsui, K. L. (2016). Sound transmission across a plenum window with an active noise cancellation system. Noise Control Engineering Journal, 64(4), 423-431. https://doi.org/10.3397/1/376390

A series of experiments was conducted in the present study in an attempt to understand how the implementation of active noise control would affect the sound transmission across a plenum window. A simple squared pressure control scheme with three erro... Read More about Sound transmission across a plenum window with an active noise cancellation system.

Geometrical parameter combinations that correlate with early interaural cross-correlation coefficients in a performance hall (2016)
Journal Article
Cheung, L. Y., & Tang, S. K. (2016). Geometrical parameter combinations that correlate with early interaural cross-correlation coefficients in a performance hall. The Journal of the Acoustical Society of America, 139(5), 2741-2753. https://doi.org/10.1121/1.4948995

The previous binaural data of the authors measured inside two multi-purpose performance halls are re-analyzed using regression in this study. It is done in an attempt to establish a framework that can improve the prediction of early interaural cross-... Read More about Geometrical parameter combinations that correlate with early interaural cross-correlation coefficients in a performance hall.

The Impact of Technology-supported and Triangulated Writing Tasks on a Pilot Interdisciplinary Undergraduate Subject for Construction Disciplines (2016)
Journal Article
Kam, R., Tang, S. K., & Lee, L. (2016). The Impact of Technology-supported and Triangulated Writing Tasks on a Pilot Interdisciplinary Undergraduate Subject for Construction Disciplines. Computers and Composition, 40, 131-150. https://doi.org/10.1016/j.compcom.2016.03.004

This article presents findings from the technology-supported implementation of triangulated writing tasks in a pilot interdisciplinary subject for construction disciplines in a Hong Kong university, and discusses these findings in relation to the bro... Read More about The Impact of Technology-supported and Triangulated Writing Tasks on a Pilot Interdisciplinary Undergraduate Subject for Construction Disciplines.

Estimation of source location and ground impedance using a hybrid multiple signal classification and Levenberg-Marquardt approach (2016)
Journal Article
Tam, K. C., Lau, S. K., & Tang, S. K. (2016). Estimation of source location and ground impedance using a hybrid multiple signal classification and Levenberg-Marquardt approach. Journal of Sound and Vibration, 374, 279-296. https://doi.org/10.1016/j.jsv.2016.03.011

A microphone array signal processing method for locating a stationary point source over a locally reactive ground and for estimating ground impedance is examined in detail in the present study. A non-linear least square approach using the Levenberg-M... Read More about Estimation of source location and ground impedance using a hybrid multiple signal classification and Levenberg-Marquardt approach.

Noise control of dipole source by using micro-perforated panel housing (2015)
Journal Article
Xi, Q., Choy, Y. S., Cheng, L., & Tang, S. K. (2016). Noise control of dipole source by using micro-perforated panel housing. Journal of Sound and Vibration, 362, 39-55. https://doi.org/10.1016/j.jsv.2015.09.047

Mitigating low-frequency noise in a small ducted fan system such as hairdryer is still a technical challenge. Traditional duct lining with porous materials work ineffectively due to the limitation of its thickness and length of small domestic product... Read More about Noise control of dipole source by using micro-perforated panel housing.

Urban soundscape of recreational area in high population area (2014)
Journal Article
Choy, Y. S., Chau, C. K., Tsui, W. K., & Tang, S. K. (2014). Urban soundscape of recreational area in high population area. Acta Acustica united with Acustica, 100(6), 1044-1055. https://doi.org/10.3813/AAA.918784

Urban landscape or parks for recreational purposes are important components in urban area in Hong Kong but traffic noise can seriously affect their usability. To evaluate their usability practically, the Soundscape of recreational areas has to be exa... Read More about Urban soundscape of recreational area in high population area.

Full scale field study of sound transmission across plenum windows (2014)
Journal Article
Tong, Y. G., Tang, S. K., Kang, J., Fung, A., & Yeung, M. K. (2015). Full scale field study of sound transmission across plenum windows. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 89, 244-253. https://doi.org/10.1016/j.apacoust.2014.10.003

A full scale field measurement of the acoustical insertion loss of plenum windows was carried out in the present investigation. Two identical mock-up test rooms with dimensions the same as those commonly adopted for Hong Kong public housing were buil... Read More about Full scale field study of sound transmission across plenum windows.

Insertion losses of balconies on a building façade and the underlying wave interactions (2014)
Journal Article
Tang, S. K., Ho, C. Y., & Tso, T. Y. (2014). Insertion losses of balconies on a building façade and the underlying wave interactions. The Journal of the Acoustical Society of America, 136(1), 213-225. https://doi.org/10.1121/1.4883379

This study used scale model experiments to investigate the insertion losses of balconies on a building façade in the presence of ground reflections. The experiments measured both A-weighted broad- and narrowband insertion loss spectra. The underlying... Read More about Insertion losses of balconies on a building façade and the underlying wave interactions.

Aeroacoustics of duct junction flows merging at different angles (2014)
Journal Article
Lam, G. C., Leung, R. C., & Tang, S. K. (2014). Aeroacoustics of duct junction flows merging at different angles. Journal of Sound and Vibration, 333(18), 4187-4202. https://doi.org/10.1016/j.jsv.2014.04.045

This paper reports an exploratory study of the aeroacoustics of a merging flow at a duct junction with the same width in all branches and different merging angles. The focus is put on the acoustic generation due to the flow unsteadiness. The study is... Read More about Aeroacoustics of duct junction flows merging at different angles.