Urban noise pollution is an omnipresent but often neglected threat to public health that must
be addressed urgently. Passive noise control measures, which are less effective at reducing …

Active noise control (ANC) systems usually involve a large number of loudspeakers and
error microphones in order to achieve noise reduction over an extended region of space …

There is a pressing need to address urban sustainability challenges of increasing ambient
temperatures and noise levels in densely-populated, high-rise cities. Solutions that utilise …

This paper presents an attempt to reduce the computational complexity, while achieving
acceptable level of noise reduction in a multi-channel active noise control (MCANC) system …

In an active noise control (ANC) system, computational complexity is one major concern
when designing practical control algorithms. For an ANC system with multiple secondary …

In this study, refracto-vibrometry is proposed for active control of sound radiation through an
opening. First, refracto-vibrometry is used to reconstruct sound field in an opening, and a …

Green's functions for acoustic problems is the fundamental solution to the inhomogeneous
Helmholtz equation for a point source, which satisfies specific boundary conditions. It is very …

The prediction of reverberant sound fields generated by a directional source is of great
interest because practical sound sources are not omnidirectional, especially at high …

Planar virtual sound barriers with secondary sources over the entire opening have been
demonstrated an effective way to achieve global control of sound transmission through the …

This paper is concerned with the modeling and acoustic eigenanalysis of coupled spaces
with a coupling aperture of variable size. A modeling method for this problem is developed …