Subadaptive piecewise linear quantization for speech signal (64 kbit/s) compression

Hiroto Saito, Isao Umoto, Akira Sasou, Shogo Nakamura, Yoshihiko Horio, Tadahiro Kubota

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We propose a simple speech compression algorithm using subband division and subadaptive piecewise linear quantization for a voice-mail system. Voice mail is an audio equivalent of sending letters. The main differences are that computer networks deliver the mail and that electronic recording is used instead of letters. Although speech data are stored in a semiconductor memory device, its capacity and the available network capacity are limited. Therefore, it is necessary to compress the data as much as possible. However, there are two conditions to be satisfied: The first is that the reconstructed datum must be understood correctly. Second, we need to identify the sender. Signals with a rate of 64 kbit/s are compressed at a ratio of about 1/9 using the proposed subband division and subadaptive piecewise linear quantization.

本文言語English
ページ(範囲)379-382
ページ数4
ジャーナルIEEE Transactions on Speech and Audio Processing
4
5
DOI
出版ステータスPublished - 1996 12 1
外部発表はい

ASJC Scopus subject areas

  • ソフトウェア
  • 音響学および超音波学
  • コンピュータ ビジョンおよびパターン認識
  • 電子工学および電気工学

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