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AuthorAslan F.
AuthorPaurobally R.
Available date2020-02-05T08:53:06Z
Publication Date2018
Publication NameJVC/Journal of Vibration and Control
AbstractThis paper presents the modeling and simulation results of active noise control (ANC) in a small room using the wave-based approach defined by particle velocities and sound pressure within the defined boundary conditions. The ANC system excitation is a single-frequency noise with an adaptive feedforward configuration. The Finite Difference Time Domain (FDTD) algorithm is used to model the room acoustics due to a boxed loudspeaker of single frequency. A control system based on the filtered-x least mean-squared (FxLMS) algorithm is utilized to synthesize a cancelling noise using a secondary loudspeaker. The single channel system is modified into a multichannel system and genetic algorithm (GA) is used to optimize the sensors and actuators placements simultaneously. Numerical results are plotted to demonstrate the performance of the control system. These show that the numerical modelling technique can be used to combine room acoustic simulation and FxLMS adaptive control. This provides a way for the optimum placement of the microphones and loudspeakers before being used in a practical complex enclosure. 2016, The Author(s) 2016.
PublisherSAGE Publications Inc.
SubjectActive noise control
Subjectfiltered-x least mean squared
Subjectfinite difference time domain
Subjectgenetic algorithm
TitleModelling and simulation of active noise control in a small room
Issue Number3
Volume Number24

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