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一种基于盲源提取的子空间语音增强算法

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摘要 本文提出了一种单麦克风下的间接语音增强算法。该算法基于两个重要模块:第一个模块,采用基于均方协差预测的盲源提取算法将附加噪声从嘈杂的语音信号中提取出来。第二个模块,利用了一种基于语音和附加噪声协方差矩阵的广义子空间方法,提取纯净的语音信号。对该算法进行了白噪声环境和嘈杂火车等真实环境噪声下的仿真实验。实验结果表明,提出的算法有良好的语音增强效果,性能上与其他算法比较有明显的优势。将算法应用于噪声环境下的语音识别处理中,很大程度地降低了噪声对语音识别的影响,取得了良好的识别率。
作者 姜树彪
机构地区 福州大学
出处 《福建电脑》 2013年第10期95-98,153,共5页 Journal of Fujian Computer
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