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Multichannel active noise control: stable adaptive algorithms

Multichannel active noise control: stable adaptive algorithms

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This chapter presents stable adaptive schemes in two cases: in the first case reference microphones are available to detect unwanted primary noise, and in the second case no reference microphones are available. The latter case requires no causality condition but its availability is limited to periodic primary noises. In both cases, we propose stability-assured adaptive algorithms to update the adaptive feedforward controllers.

Inspec keywords: active noise control; microphones; feedforward; causality; stability; adaptive control

Other keywords: adaptive feedforward controller; stability-assured adaptive algorithm; microphones; availability; periodic primary noise; multichannel active noise control; causality condition; unwanted primary noise detection

Subjects: Acoustic noise, its effects and control

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