ACTIVE NOISE CONTROL METHOD AND APPARATUS INCLUDING FEEDFORWARD AND FEEDBACK CONTROLLERS

摘要

An active noise control apparatus for reducing noise from a noise source includes a microphone for detecting noise produced by the noise source, and a generalized finite impulse response (FIR) filter for receiving noise signals of the detected noise from the microphone and generating control signals for reducing the noise from the noise source. A speaker produces sound based on the control signals from the generalized FIR filter for substantially canceling the noise from the noise source.