| 一种改进的语音识别抗噪算法 |
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| 引用本文： | 刘菁华. 一种改进的语音识别抗噪算法[J]. 华侨大学学报(自然科学版), 2009, 30(1) |
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| 作者姓名： | 刘菁华 |
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| 作者单位： | 华侨大学,信息科学与工程学院,福建,泉州,362021 |
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| 摘 要： | 为了提高在噪声环境下的语音识别性能,提出一种融合信号级和特征参数级抗噪的抗噪算法.该算法首先对带噪语音用最小均方误差估计法进行语音增强,后端对原始的带噪语音运用自相关法,以有效抑制加性和卷积噪声.实验结果表明,该算法能有效提高系统在噪声环境下,特别是低信噪比情况下的识别率.
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| 关 键 词： | 语音识别 抗噪算法 语音增强 信噪比 |
A Improved Method for Robust Speech Recognition |
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| LIU Jing-hua. A Improved Method for Robust Speech Recognition[J]. Journal of Huaqiao University(Natural Science), 2009, 30(1) |
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| Authors: | LIU Jing-hua |
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| Affiliation: | College of Information Science and Engineering;Huaqiao University;Quanzhou 362021;China |
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| Abstract: | In order to improve the speech recognition accuracy in noisy environments,an algorithm proposed,which combines the signal level with the characteristic parameter level antinoise algorithm.At first,MMSE algorithm is used for the speech enhacement module,and then,new robust features RAS-MFCC effectively suppressed the additive and convolutional noise.The results show that this algorithm effectively improves the speech recognition accuracy in noisy environments,especially in low signal-to-noise ratio(SNR) cond... |
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| Keywords: | speech recognition antinoise arithmetic speech enhancement signal-to-noise ratio |
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