Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)

An improved method for AMR-WB speech codec

Authors
Chunling Zhang, Shenghui Zhao, Hongyuan Xiao, Jing Wang, Jingming Kuang
Corresponding Author
Chunling Zhang
Available Online May 2014.
DOI
https://doi.org/10.2991/iccia.2012.118How to use a DOI?
Keywords
AMR, speech codec, autocorrelation, look-ahead,Linear Prediction
Abstract
an improved method is proposed to skip the look-ahead period in this paper. The improved method uses the autocorrelation algorithm to calculate the Linear Prediction (LP) coefficients and then the LP coefficients are employed to extrapolate new samples for replacing the look-ahead samples. To evaluate the quality of this method, perceptual evaluation of speech quality (PESQ) and the A/B listening test method are designed for the objective evaluation and subjective evaluation. The reconstructed quality of the modified method is near to the original AMR codec, at the same time, the delay of the improved method is lower 5ms than the original method.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
Part of series
Advances in Intelligent Systems Research
Publication Date
May 2014
ISBN
978-94-91216-41-1
ISSN
1951-6851
DOI
https://doi.org/10.2991/iccia.2012.118How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Chunling Zhang
AU  - Shenghui Zhao
AU  - Hongyuan Xiao
AU  - Jing Wang
AU  - Jingming Kuang
PY  - 2014/05
DA  - 2014/05
TI  - An improved method for AMR-WB speech codec
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 490
EP  - 493
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.118
DO  - https://doi.org/10.2991/iccia.2012.118
ID  - Zhang2014/05
ER  -