|4/2010 - 15|
DPCM with Forward Gain-Adaptive Quantizer and Simple Switched Predictor for High Quality Speech SignalsDESPOTOVIC, V. M. , PERIC, Z. H. , VELIMIROVIC, L. , DELIC, V. D.
|Click to see author's profile on SCOPUS, IEEE Xplore, Web of Science|
|Download PDF (1,759 KB) | Citation | Downloads: 770 | Views: 2,547|
adaptive quantization, companding, correlation, speech processing, prediction
speech(7), coding(4), chapters(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
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|
| A. Gersho, R. M. Gray, "Vector Quantization and Signal Compression", Kluwer, Academ. Pub., Chapters 5-6, pp. 133-202, 1992.
 N. S. Jayant, P. Noll, "Digital Coding of Waveforms", Prentice-Hall, New Jersey, Chapter 4, pp. 129-139, 1984.
 A. Kondoz, "Digital Speech", Coding for Low Bit Rate Communication Systems, John Wiley & Sons, New Jersey, 2004.
 W. C. Chu, "Speech Coding Algorithms", John Wiley & Sons, New Jersey, Chapters 5-6, pp. 143-183, 2006.
 D. Minoli, "Voice over MPLS - Planning and Designing Networks", McGraw-Hill, Chapters 1-2, pp. 1-134, 2002.
 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.
 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.
 B. Khasnabish, Implementing Voice over IP, John Wiley & Sons, New Jersey, 2003.
 ITU-T Recommendation G.712: Transmission Performance Characteristics of Pulse Code Modulation (PCM), 1992.
 S. Gazor, W. Zhang, "Speech probability distribution", IEEE Signal Processing Letters, vol. 10 (7), pp. 204-207, 2003.
[CrossRef] [Web of Science Times Cited 138] [SCOPUS Times Cited 180]
 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 18] [SCOPUS Times Cited 21]
 W. R. Bennett, "Spectra of quantized signals", Bell Syst Tech J, vol. 27, pp. 446-472, 1948.
 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.
 J. R. Deller, J. H. L. Hansen, J. G. Proakis, "Discrete-Time Processing of Speech Signals", IEEE Press, 2000.
 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.
 S. Dowdy, S. Wearden, "Statistics for Research", John Wiley and Sons, New York, 1983.
 R. Goldberg, L. Riek, "A Practical Handbook of Speech Coders", CRC Press, 1st Edition, 2000.
Web of Science® Citations for all references: 156 TCR
SCOPUS® Citations for all references: 201 TCR
Web of Science® Average Citations per reference: 9 ACR
SCOPUS® Average Citations per reference: 11 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 2017-09-22 09:13 in 34 seconds.
Note1: Web of Science® is a registered trademark of Thomson Reuters.
Note2: SCOPUS® is a registered trademark of Elsevier B.V.
Disclaimer: All queries to the respective databases were made by using the DOI record of every reference (where available). Due to technical problems beyond our control, the information is not always accurate. Please use the CrossRef link to visit the respective publisher site.
Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
Permission for other use: The copyright owner's consent does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific written permission must be obtained from the Editor for such copying. Direct linking to files hosted on this website is strictly prohibited.
Disclaimer: Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that all information and opinions formulated in the articles, as well as linguistic accuracy, are the sole responsibility of the author.