A method to skip look-ahead samples in AMR speech codec

Chun Ling Zhang; Sheng Hui Zhao; Ying Xue Wang; Jing Ming Kuang

A method to skip look-ahead samples in AMR speech codec

Chun Ling Zhang, Sheng Hui Zhao^*, Ying Xue Wang, Jing Ming Kuang

^*此作品的通讯作者

信息与电子学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

A method was proposed to skip the look-ahead samples in this paper. Firstly, the method used the covariance algorithm to calculate the linear prediction (LP) coefficients. Secondly, LP coefficients were utilized to produce the new samples. Finally, the new samples were used to replace the look-ahead samples. To evaluate the voice quality, the objective evaluation and subjective evaluation were designed respectively and the complexity test was calculated. Experiments show that the reconstructed quality of the proposed method is near to the original AMR codec, and the delay of the proposed method is lower 5 ms than the original method.

源语言	英语
页（从-至）	727-731
页数	5
期刊	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
卷	34
期	7
出版状态	已出版 - 1 7月 2014

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Zhang, C. L., Zhao, S. H., Wang, Y. X., & Kuang, J. M. (2014). A method to skip look-ahead samples in AMR speech codec. Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, 34(7), 727-731.

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title = "A method to skip look-ahead samples in AMR speech codec",

abstract = "A method was proposed to skip the look-ahead samples in this paper. Firstly, the method used the covariance algorithm to calculate the linear prediction (LP) coefficients. Secondly, LP coefficients were utilized to produce the new samples. Finally, the new samples were used to replace the look-ahead samples. To evaluate the voice quality, the objective evaluation and subjective evaluation were designed respectively and the complexity test was calculated. Experiments show that the reconstructed quality of the proposed method is near to the original AMR codec, and the delay of the proposed method is lower 5 ms than the original method.",

keywords = "Adaptive multi-rate (AMR), Covariance, Linear prediction (LP), Look-ahead, Speech codec",

author = "Zhang, {Chun Ling} and Zhao, {Sheng Hui} and Wang, {Ying Xue} and Kuang, {Jing Ming}",

year = "2014",

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T1 - A method to skip look-ahead samples in AMR speech codec

AU - Zhang, Chun Ling

AU - Zhao, Sheng Hui

AU - Wang, Ying Xue

AU - Kuang, Jing Ming

PY - 2014/7/1

Y1 - 2014/7/1

N2 - A method was proposed to skip the look-ahead samples in this paper. Firstly, the method used the covariance algorithm to calculate the linear prediction (LP) coefficients. Secondly, LP coefficients were utilized to produce the new samples. Finally, the new samples were used to replace the look-ahead samples. To evaluate the voice quality, the objective evaluation and subjective evaluation were designed respectively and the complexity test was calculated. Experiments show that the reconstructed quality of the proposed method is near to the original AMR codec, and the delay of the proposed method is lower 5 ms than the original method.

AB - A method was proposed to skip the look-ahead samples in this paper. Firstly, the method used the covariance algorithm to calculate the linear prediction (LP) coefficients. Secondly, LP coefficients were utilized to produce the new samples. Finally, the new samples were used to replace the look-ahead samples. To evaluate the voice quality, the objective evaluation and subjective evaluation were designed respectively and the complexity test was calculated. Experiments show that the reconstructed quality of the proposed method is near to the original AMR codec, and the delay of the proposed method is lower 5 ms than the original method.

KW - Adaptive multi-rate (AMR)

KW - Covariance

KW - Linear prediction (LP)

KW - Look-ahead

KW - Speech codec

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JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

IS - 7

ER -

A method to skip look-ahead samples in AMR speech codec

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