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General Information
ISSN:
1796-2021 (Online); 2374-4367 (Print)
Abbreviated Title:
J. Commun.
Frequency:
Monthly
DOI:
10.12720/jcm
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Acceptance Rate:
27%
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800 USD
Average Days to Accept:
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3.4
2023
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Editor-in-Chief
Prof. Maode Ma
College of Engineering, Qatar University, Doha, Qatar
I'm very happy and honored to take on the position of editor-in-chief of JCM, which is a high-quality journal with potential and I'll try my every effort to bring JCM to a next level...
[Read More]
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Home
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2018
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Volume 13, No. 5, May 2018
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A Smoothed and Thresholded Linear Prediction Analysis for Efficient Speech Coding
Aadel Alatwi and Kuldip K. Paliwal
Signal Processing Laboratory, Griffith University, Brisbane, QLD 4111, Australia
Abstract—In this paper, we propose a new method of linear prediction (LP) analysis for estimating LP coefficients that are used in current speech coders. This method improves the robustness of LP coefficients computed from speech signals corrupted by noise as well as offering better quantisation efficiency. The quantisation performance and the noise-robustness obtained by the proposed LP coefficients were compared to that obtained by the LP coefficients computed using the autocorrelation and LP spectrum modification methods of LP Analysis, in terms of spectral distortion (SD). The results indicate that the proposed LP coefficients were more robust to noise and also offered transparent quantisation at lower bit-rates (savings of up to 2 bits/frame) than other LP coefficients.
Index Terms—Linear prediction coefficients, linear prediction analysis, two-split vector quantisation, three-split vector quantisation, spectral distortion measure
Cite: Aadel Alatwi and Kuldip K. Paliwal, "A Smoothed and Thresholded Linear Prediction Analysis for Efficient Speech Coding," Journal of Communications, vol. 13, no. 5, pp. 230-235, 2018. Doi: 10.12720/jcm.13.5.230-235.
5-SP008
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