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《Journal of Qinghai Normal University(Natural Science Edition)》 2010-01
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Research on the impact of noise on the LPC spectrum

YAO Gang,JIANG Zhan-cai(Physics Department,Qinghai Normal University,Xining 810008,China)  
The LPC Spectral analysis has a very important role in speech processing,but it is vulnerable to the impact of noise.Thus,studying the impact of noise on LPC spectrum is quite necessary.The LPC spectrum reflects the main futures of Formant,so we can calculate the relative error of the first three Formant and simulate the data variation in Matlab,which shows the impact of noise on the LPC spectrum;at the same time,we recommend you to use the wavelet transform to filter the noise.
【CateGory Index】: TN912.3
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