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
- 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.
- Copyright
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
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 - 10.2991/iccia.2012.118 ID - Zhang2014/05 ER -