400bps High-Quality Speech Coding Algorithm

被引：2

作者：

Ma, Xiaofeng ^{[1
]}

Li, Ye ^{[1
]}

Jiang, Jingsai ^{[1
]}

Zhang, Peng ^{[1
]}

Fan, Yanhong ^{[1
]}

Hao, Qiuyun ^{[1
]}

机构：

[1] Natl Supercomp Ctr Jinan, Shandong Prov Key Lab Comp Networks, Shandong Comp Sci Ctr, Jinan, Peoples R China

来源：

2016 INTERNATIONAL SYMPOSIUM ON COMPUTER, CONSUMER AND CONTROL (IS3C) | 2016年

关键词：

speech coding; super-frame; vector quantization; MELP; mean opinion score;

D O I：

10.1109/IS3C.2016.75

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Low bit rate speech coding is important to speech communications over band-limited or harsh channels. In this paper, based on the mixed excitation linear prediction (MELP) model, we propose a high-quality 400bps low bit rate speech coding algorithm which introduces multi-frame joint vector quantization, adaptive spectral enhancement and multi-band sinusoidal mixed excitation. Efficient parameter quantization schemes are employed on the basis of the super-frame structure. It is verified that the synthesized speech has fairly high intelligibility and naturalness, and the mean opinion score (MOS) is about 2.52.

引用

页码：256 / 259

页数：4

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