Title :
Adaptive control of sound in a duct using an array of secondary loudspeakers
Author :
Elliott, Stephen J.
Author_Institution :
Inst. of Sound & Vibration Res., Southampton Univ., UK
Abstract :
A pair of loudspeakers can be used to actively control an incident acoustic wave in a duct, without generating reflections. An algorithm is presented for the adaptation of the digital controller driving the two loudspeakers, which minimises the outputs of two error microphones, one upstream and one downstream of the loudspeaker pair
Keywords :
acoustic variables control; adaptive control; loudspeakers; adaptive sound control; algorithm; digital controller; duct; error microphones; incident acoustic wave; loudspeaker array;
Conference_Titel :
New Directions in Adaptive Signal Processing, IEE Colloquium on
Conference_Location :
London
