发明公开
EP2012725A2 NARROW BAND NOISE REDUCTION FOR SPEECH ENHANCEMENT 审中-公开
降噪用于与远程场麦克风上的控制台的电子装置

NARROW BAND NOISE REDUCTION FOR SPEECH ENHANCEMENT
摘要:
Reduction of noise in a device having a console with one or more microphones and a source of narrow band distributed noise located on the console is disclosed. A microphone signal containing a broad band distributed desired sound and narrow band distributed noise is divided amongst a plurality of frequency bins. For each frequency bin, it is determined whether a portion of the signal within the frequency bin belongs to a narrow band distribution characteristic of the source of narrow band noise located on the console. Any frequency bins containing portions of the signal belonging to the narrow band distribution are filtered to reduce the narrow band noise.
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