| 摘要 |
A noise elimination apparatus and method of eliminating noise content from a signal including the noise content and audio content input to a recording device, such as a camcorder. The method includes determining whether a noise frame exists by variably setting one or more thresholds independently in zones in which an estimated noise spectrum is updated according to an input audio spectrum of the audio signal, updating the estimated noise spectrum according to a noise spectrum of a previous frame and a noise spectrum of a current frame if the current frame is determined to be a noise frame, and subtracting the estimated noise spectrum from the input audio spectrum of the current frame.
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