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Three-Level Delta Modulation for Laplacian Source CodingDENIC, B.   , PERIC, Z. , DESPOTOVIC, V. |
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Author keywords
delta modulation, Huffman coding, predictive coding, signal to noise ratio, speech coding
References keywords
speech(10), processing(7), delta(7), coding(7), signal(5), recommendation(4), quantization(4), design(4), adaptive(4)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2017-02-28
Volume 17, Issue 1, Year 2017, On page(s): 95 - 102
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2017.01014
Web of Science Accession Number: 000396335900014
SCOPUS ID: 85014257330
Abstract
This paper proposes a novel solution for coding of time varying signals with Laplacian distribution, which is based on delta modulation and three-level quantization. It upgrades the conventional scheme by introducing the quantizer with variable length code. Forward adaptive scheme is used, where the adaptation to the signal variance is performed on frame-by-frame basis. We employ configurations with simple fixed first-order predictor and switched first-order predictor utilizing correlation. Furthermore, we propose different methods for optimizing predictor coefficients. The configurations are tested on speech signal and compared to an adaptive two-level and four-level delta modulation, showing that proposed three-level delta modulation offers performance comparable to a four-level baseline with significant savings in bit rate. |
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[1] Algorithm based on 2‐bit adaptive delta modulation and fractional linear prediction for Gaussian source coding, Peric, Zoran, Denic, Bojan, Despotovic, Vladimir, IET Signal Processing, ISSN 1751-9675, Issue 6, Volume 15, 2021.
Digital Object Identifier: 10.1049/sil2.12040 [CrossRef]
[2] Three-Level Delta Modulation with Second-Order Prediction for Gaussian Source Coding, PERIC, Z., DENIC, B., DESPOTOVIC, V., Advances in Electrical and Computer Engineering, ISSN 1582-7445, Issue 3, Volume 18, 2018.
Digital Object Identifier: 10.4316/AECE.2018.03017 [CrossRef] [Full text]
[3] An efficient two-digit adaptive delta modulation for Laplacian source coding, Peric, Zoran, Denic, Bojan, Despotovic, Vladimir, International Journal of Electronics, ISSN 0020-7217, Issue 7, Volume 106, 2019.
Digital Object Identifier: 10.1080/00207217.2019.1582707 [CrossRef]
[4] Design and Analysis of Binary Scalar Quantizer of Laplacian Source with Applications, Peric, Zoran, Denic, Bojan, Savic, Milan, Despotovic, Vladimir, Information, ISSN 2078-2489, Issue 11, Volume 11, 2020.
Digital Object Identifier: 10.3390/info11110501 [CrossRef]
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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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.
