BACKWARD-TYPE EFFICIENT CODING FOR WIDE-BAND SPEECH AND MUSIC SIGNALS (ADPCM-AB).

Shinji Hayashi*, Masaaki Honda, Nobuhiko Kitawaki

*この研究の対応する著者

研究成果: Article査読

抄録

This paper proposes a new backward speech coding system (ADPCM-AB) for wide-band (7 kHz) speech and music signals. This system employs a split-band adaptive predictive coding scheme with PARCOR lattice filter and dynamic bit allocation, in which the quantization bits are dynamically allocated over sub-bands and stereo channels in accordance with the distribution of residual energies. The ADPCM-AB needs either longer delay time than 5ms nor transmission of side information parameters since linear prediction coefficients and dynamic bit allocation parameters are calculated using locally decoded signals.

本文言語English
ページ(範囲)673-679
ページ数7
ジャーナルDenki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
36
5
出版ステータスPublished - 1987 1月 1
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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