SYSTEMS AND METHODS FOR ESTIMATING NOISE

An audio system includes a noise-estimation filter, configured to receive a magnitude-squared frequency-domain noise-reference signal and to generate a magnitude-squared frequency-domain noise-estimation signal; and a noise-reduction filter configured to receive a microphone signal from a microphone, the microphone signal including a noise component correlated to an acoustic noise signal, and to suppress the noise component of the microphone signal, based, at least in part, on the magnitude-squared frequency-domain noise-estimation signal, to generate a noise-suppressed signal.