| 子带频谱分析的语音增强 |
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| 引用本文： | 徐静波,于洪涛,冉崇森.子带频谱分析的语音增强[J].应用科学学报,2006,24(3):232-235. |
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| 作者姓名： | 徐静波 于洪涛 冉崇森 |
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| 作者单位： | 信息工程大学信息工程学院, 河南郑州 450002 |
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| 摘 要： | 提出一种有效的语音增强算法,该算法使用重叠相加FFT滤波器进行谱幅度估计,给出噪声估计的两个均值参数,此参数适用于任何噪声.而且进行噪声估计无需检测语音间隙,无需VAD的运算过程,克服了单信道噪声压缩算法的缺点.
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| 关 键 词： | 噪声估计 语音激活检测 FFT滤波器 谱幅度估计 |
| 文章编号： | 0255-8297（2006）03-0232-04 |
| 收稿时间： | 2005-01-14 |
| 修稿时间： | 2005-01-142005-07-08 |
Speech Enhancement Using Sub-band Spectral Analysis |
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| XU Jing-bo,YU Hong-tao,RAN Chong-sen.Speech Enhancement Using Sub-band Spectral Analysis[J].Journal of Applied Sciences,2006,24(3):232-235. |
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| Authors: | XU Jing-bo YU Hong-tao RAN Chong-sen |
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| Institution: | Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China |
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| Abstract: | This paper describes an efficient algorithm for enhancement of speech signals,which is based on estimation of spectral amplitude using an overlap-add FFT filter bank.It can be adjusted to different kinds of noise by means of two parameters.The speech enhancement system requires neither speech pause detection for noise estimation nor VAD(voice activity detection),and overcomes disadvantages existing in single channel noise suppression algorithms. |
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| Keywords: | FFT filter noise estimation spectral amplitude estimation VAD |
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