An 800 bps vocoder based on Mixed Excitation Linear Prediction

DOI

10.2991/icimm-15.2015.19How to use a DOI?

Keywords

Vocoder; Mixed Excitation Linear Prediction; Channel Coding; Unequal Error Protection

Abstract

Based on the Mixed Excitation Linear Prediction (MELP) model, this paper presents a vocoder to obtain high-quality synthetic speech at 800 bps with 25% redundancy for channel coding. The vocoder parameters are designed and an unequal error protection method is proposed to improve the robustness over random error channel. Several channel coding schemes are compared and the optimal one is then selected. Test results show that the proposed speech coding algorithm could provide satisfactory speech quality and also have strong robustness for channel error.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ye Li
AU  - Qiuyun Hao
AU  - Peng Zhang
AU  - Jingsai Jiang
AU  - XiaoFeng Ma
AU  - Yanhong Fan
PY  - 2015/07
DA  - 2015/07
TI  - An 800 bps vocoder based on Mixed Excitation Linear Prediction
BT  - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials
PB  - Atlantis Press
SP  - 91
EP  - 96
SN  - 2352-5401
UR  - https://doi.org/10.2991/icimm-15.2015.19
DO  - 10.2991/icimm-15.2015.19
ID  - Li2015/07
ER  -