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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
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ROMANIA

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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  4/2010 - 15

 HIGH-IMPACT PAPER 

DPCM with Forward Gain-Adaptive Quantizer and Simple Switched Predictor for High Quality Speech Signals

DESPOTOVIC, V. M. See more information about DESPOTOVIC, V. M. on SCOPUS See more information about DESPOTOVIC, V. M. on IEEExplore See more information about DESPOTOVIC, V. M. on Web of Science, PERIC, Z. H. See more information about  PERIC, Z. H. on SCOPUS See more information about  PERIC, Z. H. on SCOPUS See more information about PERIC, Z. H. on Web of Science, VELIMIROVIC, L. See more information about  VELIMIROVIC, L. on SCOPUS See more information about  VELIMIROVIC, L. on SCOPUS See more information about VELIMIROVIC, L. on Web of Science, DELIC, V. D. See more information about DELIC, V. D. on SCOPUS See more information about DELIC, V. D. on SCOPUS See more information about DELIC, V. D. on Web of Science
 
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Download PDF pdficon (1,759 KB) | Citation | Downloads: 1,077 | Views: 3,859

Author keywords
adaptive quantization, companding, correlation, speech processing, prediction

References keywords
speech(7), coding(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2010-11-30
Volume 10, Issue 4, Year 2010, On page(s): 95 - 98
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2010.04015
Web of Science Accession Number: 000284782700015
SCOPUS ID: 78649687551

Abstract
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Full text preview
In this article DPCM (Differential Pulse Code Modulation) speech coding scheme with a simple switched first order predictor is presented. Adaptation of the quantizer to the signal variance is performed for each particular frame. Each frame is classified as high or low correlated, based on the value of the correlation coefficient, then the selection of the appropriate predictor coefficient and bitrate is performed. Low correlated frames are encoded with a higher bitrate, while high correlated frames are encoded with a lower bitrate without the objectionable loss in quality. Theoretical model and experimental results are provided for the proposed algorithm.


References | Cited By  «-- Click to see who has cited this paper

[1] A. Gersho, R. M. Gray, "Vector Quantization and Signal Compression", Kluwer, Academ. Pub., Chapters 5-6, pp. 133-202, 1992.

[2] N. S. Jayant, P. Noll, "Digital Coding of Waveforms", Prentice-Hall, New Jersey, Chapter 4, pp. 129-139, 1984.

[3] A. Kondoz, "Digital Speech", Coding for Low Bit Rate Communication Systems, John Wiley & Sons, New Jersey, 2004.
[CrossRef]


[4] W. C. Chu, "Speech Coding Algorithms", John Wiley & Sons, New Jersey, Chapters 5-6, pp. 143-183, 2006.

[5] D. Minoli, "Voice over MPLS - Planning and Designing Networks", McGraw-Hill, Chapters 1-2, pp. 1-134, 2002.

[6] O. Hersent, J. Petit, D. Gurle, Beyond VoIP Protocols - Understanding Voice Technology and Networking Techniques for IP Telephony, John Wiley & Sons, New Jersey, Chapters 1-2, pp. 1-88, 2005.

[7] J. Nikolic, Z. Peric, "Lloyd-Max's Algorithm Implementation in Speech Coding Algorithm Based on Forward Adaptive Technique", Informatica, vol. 19, (2), pp. 255-270, 2008.

[8] B. Khasnabish, Implementing Voice over IP, John Wiley & Sons, New Jersey, 2003.
[CrossRef]


[9] ITU-T Recommendation G.712: Transmission Performance Characteristics of Pulse Code Modulation (PCM), 1992.

[10] S. Gazor, W. Zhang, "Speech probability distribution", IEEE Signal Processing Letters, vol. 10 (7), pp. 204-207, 2003.
[CrossRef] [Web of Science Times Cited 195] [SCOPUS Times Cited 238]


[11] S. Na, "Asymptotic Formulas for Mismatched Fixed-Rate Minimum MSE Laplacian Quantizers", IEEE Signal Processing Letters, vol. 15, pp. 13-16, 2008.
[CrossRef] [Web of Science Times Cited 30] [SCOPUS Times Cited 35]


[12] W. R. Bennett, "Spectra of quantized signals", Bell Syst Tech J, vol. 27, pp. 446-472, 1948.

[13] P. F. Panter, W. Dite, "Quantization distortion in pulse count modulation with nonuniform spacing of levels", in Proc. IRE, vol. 39 (1), pp. 44-48, 1951.

[14] J. R. Deller, J. H. L. Hansen, J. G. Proakis, "Discrete-Time Processing of Speech Signals", IEEE Press, 2000.

[15] C. C. Cho, N. I. Park, H. K. Kim, "A Packet Loss Concealment Algorithm Robust to Burst Packet Loss for CELP-type Speech Coders", in Proc. of ITC-CSCC 2008, pp. 941-944, 2008.

[16] S. Dowdy, S. Wearden, "Statistics for Research", John Wiley and Sons, New York, 1983.

[17] R. Goldberg, L. Riek, "A Practical Handbook of Speech Coders", CRC Press, 1st Edition, 2000.
[CrossRef]




References Weight

Web of Science® Citations for all references: 225 TCR
SCOPUS® Citations for all references: 273 TCR

Web of Science® Average Citations per reference: 13 ACR
SCOPUS® Average Citations per reference: 15 ACR

TCR = Total Citations for References / ACR = Average Citations per Reference

We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more

Citations for references updated on 2022-11-27 10:05 in 56 seconds.




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