Perceptual Evaluation of Speech Quality for iLBC Vocoder with Uneven Level Protection over Narrow Band MSK Radio

被引：0

作者：

Lee, Shih-Kai ^{[1
]}

Keng, Lu-Ping ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Commun Engn, 135 Yuan Tung Rd, Tao Yuan, Taiwan

来源：

PROCEEDINGS OF THE 12TH WSEAS INTERNATIONAL CONFERENCE ON COMMUNICATIONS: NEW ASPECTS OF COMMUNICATIONS | 2008年

关键词：

iLBC; VoIP; MSK; ULP; PESQ;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

iLBC (internet Low Bit-rate Codec) is widely used in VoIP (Voice over IP) applications. This paper is concerned with using iLBC in narrow band MSK (Minimum Shift Keying) wireless communication. Several ULP (Uneven Level Protection) schemes to protect different part of payloads are evaluated under AWGN (Additive White Gaussian Noise) channel. We utilize PESQ (Perceptual Evaluation of Speech Quality) to evaluate the perceptual speech quality. Simulation results show significant improvement of PESQ scores by using appropriate ULP strategies so that our proposed MSK radio system can achieve high receiving sensitivity.

引用

页码：293 / +

页数：3

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