All Outputs (44)

Duct sound produced by vortex flow over a splitter plate (2022)
Journal Article
Tang, S. K. (2022). Duct sound produced by vortex flow over a splitter plate. Journal of Sound and Vibration, 541, Article 117352. https://doi.org/10.1016/j.jsv.2022.117352

This paper examines the sound generated by an inviscid low Mach number vortex filament as it moves near a semi-infinite splitter in a two-dimensional duct with and without vortex shedding at the splitter edge. A strong one-dimensional sound is produc... Read More about Duct sound produced by vortex flow over a splitter plate.

Roadway traffic sound measured up on a high-rise building - the sound-level's statistical normality (2022)
Journal Article
Muaz, M., Tang, S. K., Lin, T. C., Wong, K. T., & Ng, H. T. (2022). Roadway traffic sound measured up on a high-rise building - the sound-level's statistical normality. IEEE Access, 10, 105031-105039. https://doi.org/10.1109/ACCESS.2022.3204124

Percentile-value ceilings/thresholds have been mandated by governments around the world on roadway traffic sound-level. Such percentile values, by definition, change with the sound-level’s underlying probability distribution, i.e., the same percentil... Read More about Roadway traffic sound measured up on a high-rise building - the sound-level's statistical normality.

The effects of visual landscape and traffic type on soundscape perception in high-rise residential estates of an urban city (2022)
Journal Article
Tan, J. K. A., Hasegawa, Y., Lau, S. K., & Tang, S. K. (2022). The effects of visual landscape and traffic type on soundscape perception in high-rise residential estates of an urban city. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 189, Article 108580. https://doi.org/10.1016/j.apacoust.2021.108580

In dense urban cities with high-rise estates where large population of residents live in close proximity, the increasing noise exposure in soundscapes due to traffic noise, construction and other undesirable anthropophony in urban lived environments... Read More about The effects of visual landscape and traffic type on soundscape perception in high-rise residential estates of an urban city.

On the length scale and Strouhal numbers for sound transmission across coupled duct cavities at low Mach number (2021)
Journal Article
Tang, S. K., & Tang, Y. (2021). On the length scale and Strouhal numbers for sound transmission across coupled duct cavities at low Mach number. The Journal of the Acoustical Society of America, 150(6), 4232-4243. https://doi.org/10.1121/10.0008950

The sound transmission across two coupled cavities along a rectangular duct in the presence of a low Mach number flow is examined experimentally in the present study. An effort is also made for a deeper understanding of how the flow, excitation sound... Read More about On the length scale and Strouhal numbers for sound transmission across coupled duct cavities at low Mach number.

On sound propagation along an infinite rectangular duct-like structure with a finite slot opening and its modelling (2021)
Journal Article
Chu, S. H., & Tang, S. K. (2021). On sound propagation along an infinite rectangular duct-like structure with a finite slot opening and its modelling. The Journal of the Acoustical Society of America, 150(5), 3445-3460. https://doi.org/10.1121/10.0007061

The sound propagation across a sound leaking section along an infinite rectangular duct-like structure near to the lower order duct eigenfrequencies is investigated numerically in the present study. The sound leakage is achieved by finite length rect... Read More about On sound propagation along an infinite rectangular duct-like structure with a finite slot opening and its modelling.

Noise reduction of plenum windows on the façade of a high-rise residential building next to heavy road traffic (2020)
Journal Article
Li, X., Tang, S. K., Yim, S. Y., Lee, R. Y., & Hung, T. (2020). Noise reduction of plenum windows on the façade of a high-rise residential building next to heavy road traffic. Building and Environment, 186, Article 107353. https://doi.org/10.1016/j.buildenv.2020.107353

Extensive traffic noise transmission loss measurements were carried out inside selected residential units of a standalone 32-storey housing block located next to a very busy and noisy main trunk road in the present study. A total of 35 units, which w... Read More about Noise reduction of plenum windows on the façade of a high-rise residential building next to heavy road traffic.

Sound transmission across a narrow sidebranch array duct muffler at low Mach number (2020)
Journal Article
Yu, H. M., & Tang, S. K. (2020). Sound transmission across a narrow sidebranch array duct muffler at low Mach number. The Journal of the Acoustical Society of America, 148(3), 1692-1702. https://doi.org/10.1121/10.0001993

The sound transmission loss across a duct muffler in the form of a linear array of 11 narrow sidebranches is examined experimentally in the present study. The introduction of a low Mach number duct flow deteriorates the broadband acoustical performan... Read More about Sound transmission across a narrow sidebranch array duct muffler at low Mach number.

Comparing the effects of visibility of different neighborhood greenery settings on the preference ratings and noise annoyance responses to road traffic noises (2020)
Journal Article
Chung, W. K., Leung, T. M., Chau, C. K., & Tang, S. K. (2020). Comparing the effects of visibility of different neighborhood greenery settings on the preference ratings and noise annoyance responses to road traffic noises. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 169, Article 107474. https://doi.org/10.1016/j.apacoust.2020.107474

The impact of visual environment on human noise perceptions has always been under scrutiny. Two consecutive sets of laboratory experiments were performed for studying the effect of visual perceptions of different percentages of sea, greenery, and/or... Read More about Comparing the effects of visibility of different neighborhood greenery settings on the preference ratings and noise annoyance responses to road traffic noises.

On the performance of existing acoustic energy models when applied to multi-purpose performance halls (2020)
Journal Article
Gao, J., Tang, S. K., Zhao, Y., Cai, Y., & Pan, L. (2020). On the performance of existing acoustic energy models when applied to multi-purpose performance halls. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 167, Article 107401. https://doi.org/10.1016/j.apacoust.2020.107401

Acoustical measurements were done in two multi-purpose performance halls in the present study. The measured data are compared with predictions from three acoustic energy models in existing literature derived for churches and large reverberant theatre... Read More about On the performance of existing acoustic energy models when applied to multi-purpose performance halls.

Insertion loss of asymmetrical balconies on a building facąde (2019)
Journal Article
Tang, S. K., Ho, C. Y., & Chan, W. Y. (2019). Insertion loss of asymmetrical balconies on a building facąde. The Journal of the Acoustical Society of America, 146(3), 1580-1594. https://doi.org/10.1121/1.5125135

The acoustical insertion loss of asymmetrical balconies on high-rise buildings was studied experimentally using a 1:3 scaled down model in the present study. Four balcony forms featured by the presence of a full-height side-wall were included. A line... Read More about Insertion loss of asymmetrical balconies on a building facąde.

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.

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.