FIELD: acoustics.
SUBSTANCE: technical result is achieved due to the noise reduction system, which includes a sub-band noise sensor, a plurality of sub-band suppression modules and an output module. The sub-band noise sensor may be configured to detect noise and generate a plurality of sub-band noise signals in response to the detected noise. Each of the plurality of sub-band noise signals may have a different sub-band of the noise band. Each of the sub-band noise canceling modules may be configured to receive one of the sub-band noise signals from the sub-band noise sensor and generate a sub-band noise correction signal to reduce the received sub-band noise signal. The output module may be configured to receive sub-band noise correction signals and output a noise correction signal for noise reduction based on the sub-band noise correction signals.
EFFECT: increasing of the effect of noise reduction.
9 cl, 17 dwg
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