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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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【Co-citations】
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1 SHAO Li-na et al(College of Light Industrial Science and Engineering,Nanjing Forestry University,Nanjing,Jiangsu 210037);Application of Wavelet Transform in Enhancing the Accuracy of Near-infrared Analysis of Rapeseed Fatty Acids[J];Journal of Anhui Agricultural Sciences;2010-12
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1 YIN Xiaomin 1,2 XU Tingting 3 JING Weiping 1,2 ZHANG Hua 1,2 (1.Jiangsu Provincial Key LAB of ASIC Design,Nantong University,jiangsu,Nantong 226019,China) (2.State Key Laboratory of Transducer Technology,Chinese Academy of Sciences,Shanghai 200050,China) (3.Alcatel-Lucent,shanghai 201206,China);Processing of the Noise in Infrared Sensor Made from PMN-PT[A];[C];2010
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【Secondary Citations】
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1 Li Yuanliang ~(1,2),Li Bo~(1,3),Wang Chengyou~1(1.College of Electronic Science and Engineering,National University of Defense Technology,Changsha,Hunan 410073,China;2.Electric and Information College,Hunan University,Changsha,Hunan 410082,China;3.The Telecommunication Engineering Institute,Air Force Engineering University,Xi'an,Shanxi 710077,China);Spectrum Modification in Voice Conversion Based on System Unit Impulse Function[J];Mining Research and Development;2005-05
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