All Outputs (6)

Sustainable soundscapes : noise policy and the urban experience (2006)
Journal Article
Adams, M., Cox, T., Moore, G., Croxford, B., & Refaee, M. (2006). Sustainable soundscapes : noise policy and the urban experience. Urban Studies, 43(13), 2385-2398. https://doi.org/10.1080/00420980600972504

This paper introduces regulatory components influencing city soundscapes in Europe and the UK, illustrating the abatement approach taken within noise policy, demonstrating the importance of individual experience in assessing the soundscapes of urban... Read More about Sustainable soundscapes : noise policy and the urban experience.

Improved membrane absorbers (2006)
Thesis
Oldfield, R. Improved membrane absorbers. (Dissertation). The University of Salford

This thesis presents research into two novel techniques for improving the low frequency performance, tunability and efficiency of membrane absorbers. The first approach uses a loudspeaker surround as the mounting for the membrane, increasing the movi... Read More about Improved membrane absorbers.

Maximum length sequence and Bessel diffusers using active technologies (2006)
Journal Article
Cox, T., Avis, M., & Xiao, L. (2006). Maximum length sequence and Bessel diffusers using active technologies. Journal of Sound and Vibration, 289(4-5), 807-829. https://doi.org/10.1016/j.jsv.2005.02.019

Active technologies can enable room acoustic diffusers to operate over a wider bandwidth than passive devices, by extending the bass response. Active impedance control can be used to generate surface impedance distributions which cause wavefront disp... Read More about Maximum length sequence and Bessel diffusers using active technologies.

Room acoustic parameter extraction from music signals (2006)
Journal Article
Kendrick, P., Cox, T., Zhang, Y., Chambers, J., & Li, F. (2006). Room acoustic parameter extraction from music signals. Proceedings of the ... IEEE International Conference on Acoustics, Speech, and Signal Processing, 5, V-801. https://doi.org/10.1109/ICASSP.2006.1661397

A new method, employing machine learning techniques and a modified low frequency envelope spectrum estimator, for estimating important room acoustic parameters including reverberation time (RT) and early decay time (EDT) from received music signals h... Read More about Room acoustic parameter extraction from music signals.

A profiled structure with improved low frequency absorption. (2006)
Journal Article
Wu, T., Cox, T., & Lam, Y. (2006). A profiled structure with improved low frequency absorption. ˜The œJournal of the Acoustical Society of America (Online), 110(6), 3064-3070. https://doi.org/10.1121/1.1412443

It is possible to obtain good absorption from Schroeder diffusers if suitable alterations to the design are made. Interestingly, previous work has shown that good absorption appears possible below the design frequency when the diffusers are poorly co... Read More about A profiled structure with improved low frequency absorption..

Ternary and quadriphase sequence diffusers (2006)
Journal Article
Angus, J., Cox, T., & D'Antonio, P. (2006). Ternary and quadriphase sequence diffusers. ˜The œJournal of the Acoustical Society of America (Online), 119(1), 310-319. https://doi.org/10.1121/1.2139632

A room acoustic diffuser breaks up reflected wavefronts, and this can be achieved by presenting a spatially varying surface impedance. In hybrid surfaces, varying impedance is achieved by patches of absorption and reflection, giving reflection coeffi... Read More about Ternary and quadriphase sequence diffusers.