Embedded WI coding between 2.0 and 4.8 kbit/s

Hong Goo Kang; D. Sen

doi:10.1109/SCFT.1999.781493

Embedded WI coding between 2.0 and 4.8 kbit/s

Hong Goo Kang, D. Sen

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

This paper describes an embedded speech coder based on waveform interpolation (WI) techniques. Since the quantization of line spectral frequency (LSF) parameters is fairly orthogonal to the quantization of excitation information, designing an embedded system with WI is much easier than that of other approaches. By using a hierarchical bit-allocation of excitation signals that consist of a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW), the proposed system works well at the bit-rate of 2.0, 2.4, 3.0, 4.0 and 4.8 kbit/s. Listening tests indicate that the performance of the new system is comparable to an optimized fixed-rate WI coder, and the quality degrades gracefully as the bit-rate decreases.

Original language	English
Title of host publication	1999 IEEE Workshop on Speech Coding
Subtitle of host publication	Model, Coders, and Error Criteria, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	87-89
Number of pages	3
ISBN (Electronic)	0780356519, 9780780356511
DOIs	https://doi.org/10.1109/SCFT.1999.781493
Publication status	Published - 1999 Jan 1
Event	6th IEEE Workshop on Speech Coding - Porvoo, Finland Duration: 1999 Jun 20 → 1999 Jun 23

Other

Other	6th IEEE Workshop on Speech Coding
Country	Finland
City	Porvoo
Period	99/6/20 → 99/6/23

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All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Signal Processing

Cite this

Kang, H. G., & Sen, D. (1999). Embedded WI coding between 2.0 and 4.8 kbit/s. In 1999 IEEE Workshop on Speech Coding: Model, Coders, and Error Criteria, Proceedings (pp. 87-89). [781493] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCFT.1999.781493

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Access to Document

10.1109/SCFT.1999.781493