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Waveform Reconstruction from Non-Uniform Samples with Application to Speech Coding

Ghosh, Prasanta Kumar and Sreenivas, TV (2005) Waveform Reconstruction from Non-Uniform Samples with Application to Speech Coding. In: IEEE-Eurasip Nonlinear Signal and Image Processing, 2005. NSIP 2005. Abstracts, 18-20 May, Sapporo,Japan, p. 35.


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For non-stationary signals, such as speech, we show that extrema are useful non-uniform samples for a compact reconstruction. We demonstrate the effectiveness of different interpolating functions for reconstructing the signal from the extrema. We also show that such a non-uniform sample based reconstruction scheme can be used for applications like speech coding. In this context, we explore the quantization properties of the extrema information and design a good quality speech coder at $12-13 kbps$.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: ©1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 17 Nov 2005
Last Modified: 19 Sep 2010 04:21
URI: http://eprints.iisc.ac.in/id/eprint/4015

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