The forward-backward recovery sub-codec (FB-RSC) method: A robust form of packet-loss concealment for use in broadband IP networks

T. Morinaga, K. Mano, Takao Kaneko

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

The FB-RSC method of speech coding provides improved speech quality under packet-loss conditions. Each packet has a maximum of three codes, a main code, a forward sub-code, and a backward sub-code. The main code represents the current frame. The forward and backward sub-codes represent the next and previous frames. The necessity of the sub-codecs is determined by a sub-codec selector, which considers the SNR of the original and synthesized signals in this determination. A relatively low-compression and high-quality form of coding is used in the main codec, while coding with greater compression is used in the sub-codecs. We examined the quality of the proposed method for random loss of individual packets and pairs of consecutive packets. The result shows that our method significantly improves the concealment of packet loss.

本文言語English
ホスト出版物のタイトル2002 IEEE Speech Coding Workshop: A Paradigm Shift Toward New Coding Functions for the Broadband Age, SCW 2002 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ62-64
ページ数3
ISBN(印刷版)0780375491, 9780780375499
DOI
出版ステータスPublished - 2002
外部発表はい
イベントIEEE Speech Coding Workshop, SCW 2002 - Tsukuba City, Ibaraki, Japan
継続期間: 2002 10 62002 10 9

Other

OtherIEEE Speech Coding Workshop, SCW 2002
CountryJapan
CityTsukuba City, Ibaraki
Period02/10/602/10/9

ASJC Scopus subject areas

  • Linguistics and Language
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Software
  • Language and Linguistics

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