Design of a PSI-CELP coder for mobile communications

Kazunori Mano, T. Moriya, S. Miki, H. Ohmuro

研究成果: Paper査読

抄録

This paper describes the design and presents an evaluation of a new speech coder called Pitch Synchronous Innovation - CELP (PSI-CELP) for mobile communications. This coder has a novel structure based on a pitch synchronous random codebook in which random codevectors are adaptively changed to provide pitch periodicity in voiced frames. The subjective quality of the PSI-CELP coder (3.6 kbit/s with 2.0 kbit/s redundancy) exceeds that of the Japanese full-rate VSELP coder (6.7 kbit/s with 4.5 kbit/s redundancy).

本文言語English
ページ21-22
ページ数2
DOI
出版ステータスPublished - 1993 1月 1
外部発表はい
イベント1993 IEEE Workshop on Speech Coding for Telecommunications: Speech Coding for the Network of the Future, SCFT 1993 - Sainte-Adele, Canada
継続期間: 1993 10月 131993 10月 15

Conference

Conference1993 IEEE Workshop on Speech Coding for Telecommunications: Speech Coding for the Network of the Future, SCFT 1993
国/地域Canada
CitySainte-Adele
Period93/10/1393/10/15

ASJC Scopus subject areas

  • 信号処理
  • ソフトウェア
  • 通信
  • コンピュータ ネットワークおよび通信

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