中科院声学所语音交互技术研究中心,北京,100080
纸质出版:2004
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罗 宇, 杜利民. 基于单高斯模型集的汉语美子带特征重建算法[J]. 电子学报, 2004,32(10):1654-1657.
LUO Yu, DU Li-min. Single Gauss Model Set Based MAP Data Imputation Method for Mel-Frequency Filter-Bank Vectors of Chinese Speech[J]. Acta Electronica Sinica, 2004, 32(10): 1654-1657.
本文提出了基于单高斯模型集的汉语美子带特征重建(SGMDI)方法
并通过试验研究了该算法对提高语音识别系统加性噪声鲁棒性的作用.实验结果表明:SGMDI方法能够明显提高语音识别系统对各类音子尤其是容易被加性噪声破坏的清辅音音子的识别正确率
从而显著增强了语音识别系统的噪声鲁棒性.
Single Gauss Model set based Data Imputation (SGMDI) method is developed to recover Mel-frequency-filter-bank vectors of Chinese speech.Experiments are carried out to study how SGMDI method improves Automatic Speech Recognition (ASR) system's robustness against additive noise.Experimental results show that SGMDI method can improve phoneme correction of all kind of phonemes.Especially for unvoiced phonemes
which are easily distorted by additive noise
phoneme correction will be significantly improved.Thus
ASR system's robustness against additive noise can be greatly improved by SGMDI method.
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