A new segment quantization using Lempel-Ziv algorithm and its application to quantization of line spectral frequencies

Minoru Kohata, Motoyuki Suzuki, Akinori Ito, Shozo Makino

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A new segment quantization method using the Lempel-Ziv algorithm is proposed, and it is applied to quantize line spectral frequency parameters in speech codec. The proposed segment quantizer can save four bits per frame, compared with the ITU-T G.729 speech codec (18 bits/frame), without degradation of subjective or objective speech quality.

Original languageEnglish
Pages (from-to)661-664
Number of pages4
JournalIEEE Transactions on Communications
Volume55
Issue number4
DOIs
Publication statusPublished - 2007 Apr 1

Keywords

  • Lempel-Ziv (LZ) coding
  • Segment quantization (SQ)
  • Speech coding
  • Vector quantization (VQ)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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