CPC G10K 11/17854 (2018.01) [G10K 11/17881 (2018.01); G10L 21/038 (2013.01); G10K 2210/3026 (2013.01); G10K 2210/3027 (2013.01); G10K 2210/3028 (2013.01); G10K 2210/3056 (2013.01)] | 20 Claims |
1. A system for noise reduction, comprising:
a sub-band noise sensor including a plurality of acoustic-electric transducers and a plurality of sample modules, each of the acoustic-electric transducers having a unique frequency response and being configured to detect a noise and generate a sub-band noise electrical signal by processing the noise, each of the sampling modules being configured to receive one of the sub-band noise electrical signals and sample the received sub-band electrical signal to generate a sub-band noise signal, wherein sampling frequencies of at least two of the sampling modules are different;
a plurality of sub-band noise reduction modules, each of the sub-band noise reduction modules being configured to receive one of the sub-band noise signals from the sub-band noise sensor and generate a sub-band noise correction signal for reducing the received sub-band noise signal; and
an output module configured to receive the sub-band noise correction signals and output a noise correction signal for reducing the noise based on the sub-band noise correction signals.
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