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2008 Second International Conference on Future Generation Communication and Networking
Digital Coding of Speech Waveforms Using the Proposed ADM
December 13-December 15
ISBN: 978-0-7695-3431-2
ASCII Text
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B.K. Sujatha, P.S. Satyanarayana, K.N. Haribhat, "Digital Coding of Speech Waveforms Using the Proposed ADM," Future Generation Communication and Networking, vol. 1, pp. 381-386, 2008 Second International Conference on Future Generation Communication and Networking, 2008.
 
 
BibTex
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@article{ 10.1109/FGCN.2008.160,
author = {B.K. Sujatha and P.S. Satyanarayana and K.N. Haribhat},
title = {Digital Coding of Speech Waveforms Using the Proposed ADM},
journal ={Future Generation Communication and Networking},
volume = {1},
year = {2008},
isbn = {978-0-7695-3431-2},
pages = {381-386},
doi = {http://doi.ieeecomputersociety.org/10.1109/FGCN.2008.160},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
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TY - CONF
JO - Future Generation Communication and Networking
TI - Digital Coding of Speech Waveforms Using the Proposed ADM
SN - 978-0-7695-3431-2
SP381
EP386
A1 - B.K. Sujatha,
A1 - P.S. Satyanarayana,
A1 - K.N. Haribhat,
PY - 2008
KW - Adaptive Delta Modulation
KW - Delta Modulation
KW - High Pass filter
KW - Integrator
KW - digital coding
VL - 1
JA - Future Generation Communication and Networking
ER -
 
This paper presents an Adaptive Delta Modulation (ADM) with one-bit quantization in which the speech is first pre-processed. We define such a system as the ‘proposed ADM’. For example large variations in the input signal require larger step sizes. If step size is not increased, it leads to slope overload error. The large variations in the input signal are removed/smoothened by a suitable pre-processing method, one of which is using an integrator which can smoothen the rapid changes. The SONG and modified ABATE algorithm is used for the adaptation of step size. With signal-to-quantization error ratio (SNR) as a performance measure, the proposed ADM with preprocessed signals shows a better improvement in its performance as compared to the conventional ADM. The proposed ADM also leads to a high dynamic range performance and shows a reduction in the noise power as compared to the conventional ADM.
Index Terms:
Adaptive Delta Modulation, Delta Modulation, High Pass filter, Integrator, digital coding
Citation:
B.K. Sujatha, P.S. Satyanarayana, K.N. Haribhat, "Digital Coding of Speech Waveforms Using the Proposed ADM," fgcn, vol. 1, pp.381-386, 2008 Second International Conference on Future Generation Communication and Networking, 2008
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