A packet loss recovery of G.729 speech under severe packet loss condition

Takeshi Nagano, Akinori Ito

研究成果: Conference contribution

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 investigate influence of parameter loss to speech quality using G.729. And we investigated an effect of packet loss concealment method using redundant G.729 parameters. As compared with "repetition" method, the proposed method could improve speech quality. We also propose a bitrate reduction method by sending bit flip position instead of codebook index.

本文言語English
ホスト出版物のタイトル2012 Conference Handbook - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012
出版ステータスPublished - 2012 12 1
イベント2012 4th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012 - Hollywood, CA, United States
継続期間: 2012 12 32012 12 6

出版物シリーズ

名前2012 Conference Handbook - Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012

Other

Other2012 4th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2012
CountryUnited States
CityHollywood, CA
Period12/12/312/12/6

ASJC Scopus subject areas

  • Information Systems

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