A packet loss recovery of G.729 speech using discriminative model and N-gram

Takeshi Nagano, Akinori Ito

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In a VoIP application, packet losses degrade speech quality. Especially, IP network under a large-scale disaster should cause severe packet losses. We have investigated the relationship between parameter loss and speech quality for G.729 codec. In this paper, we propose packet loss recovery method under severe packet loss condition, where the relationship was modeled by Support Vector Machine (SVM). Compared with the 'repetition' method, the proposed method could improve speech quality. When we used both SVM and N-gram for concealing packet losses, we could obtain further improvement of speech quality.

本文言語English
ホスト出版物のタイトルProceedings - 2013 9th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2013
出版社IEEE Computer Society
ページ267-270
ページ数4
ISBN(印刷版)9780769551203
DOI
出版ステータスPublished - 2013 1 1
イベント9th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2013 - Beijing, China
継続期間: 2013 10 162013 10 18

出版物シリーズ

名前Proceedings - 2013 9th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2013

Other

Other9th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2013
CountryChina
CityBeijing
Period13/10/1613/10/18

ASJC Scopus subject areas

  • Artificial Intelligence
  • Information Systems
  • Signal Processing

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