文件名称:luboqi
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- 上传时间:2016-05-04
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文件大小:1.57kb
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首先利用录音工具录制一段语音信号,并人为加入一单频噪声,然后对信号进行频谱分析以确定所加噪声频率,自定相应技术指标,设计一个满足指标的巴特沃斯滤波器进行滤波去噪处理,最后比较滤波前后的波形和频谱并进行分析。-Firstly recording tool to record a voice signal, and artificially added to a single frequency noise, then the signal spectrum analysis to determine the applied frequency noise, self-corresponding Technical indicators designed to meet the target of a Butterworth filter for filtering de-noising processing, and finally compare waveforms and spectrum before and after filtering and analysis.
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