| 摘要 |
A method of reducing noise (howling) in a signal received at a processing stage of an acoustic system, the method comprising, at the processing stage: identifying at least one frequency at which a system gain of the acoustic system is above an average system gain of the acoustic system; providing a noise attenuation factor for reducing noise in the signal for the at least one frequency, the noise attenuation factor for the at least one frequency based on the system gain for that frequency; and applying the noise attenuation factor to a component of the signal at that frequency.
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