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室内噪声环境下语音信号时延估计

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摘要 针对室内复杂的声学环境,结合语音信号的特点,提出了一种利用语音激励信息的时延估计算法。采用线性预测得到不同位置麦克风接收的含噪语音信号的残余误差(LPCRE),残余误差中包含激励信息,再利用残余误差的互功率谱相位(CSP),进行时延估计,性能有较大改善,且适合背景噪声为脉冲噪声或白噪声或两者混合的环境下应用。
作者 刘庆华
机构地区 桂林电子科技大学通信与信息工程系
出处 《声学与电子工程》 2007年第2期22-25,29,共5页 Acoustics and Electronics Engineering
基金 国家自然科学基金(No.60272038) 广西青年科学基金(No.0447052)
关键词 时间延迟:线性预测残留误差 互功率谱相位:广义互相关
分类号 TN912.3 [电子电信—通信与信息系统]
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参考文献10

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二级参考文献9

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共引文献30

声学与电子工程
2007年 第2期

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