L/sub 1/和L/sub 2/归一倒谱距离控制失真性能(语音质量)

[1991] IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Conference Proceedings Pub Date : 1991-05-09 DOI:10.1109/PACRIM.1991.160676

J. Schroeder, R. Kubichek

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引用次数: 1

摘要

研究了几种控制畸变下倒谱距离的特性。此外，CD值由L/sub 1/和L/sub 2/归范LPC(线性预测编码)模型计算;对这些结果进行了比较和讨论。分析表明，基于L/sub 1/的CD比典型的基于L/sub 2/的CD更具鲁棒性，特别是当存在脉冲型噪声时。CD似乎对回声型失真没有效果。然而，对于添加噪声、剪切和低通滤波等其他损伤，它提供了单调的行为

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L/sub 1/ and L/sub 2/ normed cepstral distance controlled distortion performance (speech quality)

The behavior of the CD (cepstral distance) is studied under serveral types of controlled distortion. In addition, CD values are computed from both L/sub 1/ and L/sub 2/ normed LPC (linear predictive coding) models; these results are compared and discussed. The analysis indicates that the L/sub 1/-based CD is more robust than more typical L/sub 2/-based solutions, especially when impulsive-type noise is present. The CD does not appear to be effective for echo-type distortions. However, it provided monotonic behavior for other impairments such as added noise, clipping and low-pass filtering.<>

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来源期刊

[1991] IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Conference Proceedings

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