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An Improved Method for AMR-WB Speech Codec

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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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Periodical:

Advanced Materials Research (Volumes 756-759)

Pages:

1259-1263

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.756-759.1259

Citation:

Cite this paper

Online since:

September 2013

Authors:

Chun Ling Zhang, Sheng Hui Zhao, Hong Yuan Xiao, Jing Wang, Jing Ming Kuang

Keywords:

AMR, Autocorrelation, Linear Prediction, Look-Ahead, Speech Codec

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Bruno Bessette, Redwan Salami, and Roch Lefebvre, The Adaptive Multirate Wideband Speech Codec (AMR-WB), IEEE Trans. Speech and Audio Proc., vol. 10, p.620–636, (2002).

DOI: 10.1109/tsa.2002.804299

Google Scholar

[2] Adaptive Multi-Rate Wideband (AMR-WB) Speech Codec; General Description, 3GPP TS 26. 171, (2009).

Google Scholar

[3] Yan Zhao, Yuyan Zhang, and Mang Jing, AMR speech codec realization and optimization based on Tmscx55 DSP, 2012 International Conference on Computer Science and Information Processing (CSIP), IEEE Press, Aug. 2012, p.120.

DOI: 10.1109/csip.2012.6308809

Google Scholar

[4] E. Ordentlich and Y. Shoham, Low-delay code-excited linear predictive coding of wideband speech at 32 kbps, in IEEE Int. Conf. Acoustics, Speech, Signal Processing (ICASSP), IEEE Press, Apr. 1991, p.9–12. doi: 10. 1109/ICASSP. 1991. 150266.

DOI: 10.1109/icassp.1991.150266

Google Scholar

[5] Adaptive Multi-Rate Wideband (AMR-WB) Speech Codec Transcoding functions, 3GPP TS 26. 190, (2009).

Google Scholar

[6] Adaptive Multi-Rate(AMR) Speech Codec Transcoding functions, 3GPP, TS 26. 090, (2002).

Google Scholar

[7] Makinen J, Bessette B, and Bruhn S. AMR-WB+: a new audio coding standard for 3rd generation mobile audio services[C]. IEEE Int. Conf. Acoustics, Speech, Signal Processing (ICASSP), IEEE Press, May. 2005, pp.1109-1112.

DOI: 10.1109/icassp.2005.1415603

Google Scholar

[8] Lan Juan, Huang Tie-Jun, Qu Jun-Hua, A perception-based Scalable Encryption Model for AVS Audio, in IEEE Int. Conf., Multimedia and Expo(ICME), IEEE Press, July. 2007, p.1778–1781, doi: 10. 1109/ICME. 2007. 4285016.

DOI: 10.1109/icme.2007.4285016

Google Scholar

[9] IETF. SILK Speech Codec, http: /tools. ietf. org/html/draft-vos-silk-02, (2010).

Google Scholar

[10] Wai C. Chu, Window Optimization in Linear Prediction Analysis, IEEE Trans. Speech and Audio Proc., vol. 11, p.626–625, (2003).

DOI: 10.1109/tsa.2003.818213

Google Scholar