Method for the elimination of ruu00ecdo an audio signal divided into a plurality of frames, a method used in a device for elimination of ruu00ecdo,Apparatus for removing ruu00ecdo in a recording device, recording device and recording device.

摘要

Method for removing ruu00ecdo an audio signal divided into a plurality of frames, a method used in a device for elimination of ruu00ecdo,Apparatus for removing ruu00ecdo in a recording device, recording device, and recording device.It is a device for elimination of noise and a method of removing noise content contained in a signal that includes the content of noise and audio content and which is fed as entrADA to a recording device, such as a camera of the type camcorder.The method includes a determination of the existence of a framework of noise through variable definition of one or more thresholds independently in areas in which a spectrum of noise is estimated isSystem according to an input audio spectrum of the audio signal.Updating the noise spectrum is estimated in accordance with a spectrum of noise of a table and a spectrum of noise of a current frame if it is determined that the current frame consists of a frameThe noise, and subtracting the estimated noise spectrum of the audio spectrum of the entry of the current frame.