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

Shinji Hayashi, Masaaki Honda, Nobuhiko Kitawaki

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)673-679
Number of pages7
JournalDenki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
Volume36
Issue number5
Publication statusPublished - 1987 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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