| 结合相位差和谱减法的双传声器语音增强技术 |
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| 引用本文： | 袁榕嵘,吴鸣,杨军.结合相位差和谱减法的双传声器语音增强技术[J].电声技术,2011,35(5):50-54. |
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| 作者姓名： | 袁榕嵘 吴鸣 杨军 |
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| 作者单位： | 中国科学院声学研究所噪声与振动重点实验室,北京,100190 |
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| 摘 要： | 结合基于传声器阵列和相位差的语音增强算法的优点,提出了可以在同时存在平稳噪声和干扰语音环境下使用的语音增强算法.首先对噪声估计技术进行了改进,利用相位差信息和幅度信息对语音存在概率进行估计,提高了噪声估计性能.其次用相位差信息对原谱减法的幅度增益函数进行改进.在普通房间使用间距为0.08m端射结构双传声器测试,实验结果...
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| 关 键 词： | 双传声器 语音增强 相位差 噪声估计 频谱减 |
Dual-microphone Post-filtering Technology Combined Phase Difference with Spectral Subtraction |
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| YUAN Rongrong,WU Ming,YANG Jun.Dual-microphone Post-filtering Technology Combined Phase Difference with Spectral Subtraction[J].Audio Engineering,2011,35(5):50-54. |
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| Authors: | YUAN Rongrong WU Ming YANG Jun |
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| Affiliation: | YUAN Rongrong,WU Ming,YANG Jun(Key Laboratory of Noise and Vibration Research,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | In this paper, an improved algorithm, which is applicable to environments where both stationary noise and interfering speech exist, is proposed by combining the advantages of speech enhancement algorithms based on microphone array and phase difference. Firstly, both phase difference and spectrum magnitude are used to estimate the speech presence probability so that the performance of noise estimation is improved. Secondly, the magnitude gain function of the original spectrum subtraction method is modified b... |
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| Keywords: | dual-microphone speech enhancement phase difference noise power estimation spectral subtraction |
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