Vector quantization of transform components for speech coding at 1200 bps

Philipos C. Loizou, Andreas Spanias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A transform-based system is described for vector quantizing speech at and below 1200 b/s. A fixed-dimension codebook is used to quantize low-resolution harmonic components of speech. To reduce the errors of the low-resolution process, transform components, within the baseband and adjacent to the pitch-harmonic components, are also encoded. Speech produced at 1200 b/s using this method was found to be intelligible, particularly for female speakers. This is because the number of harmonic components required for female (high-pitch) speakers is generally smaller than the number required for male (low-pitch) speakers.

Original languageEnglish (US)
Title of host publicationProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Editors Anon
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages245-248
Number of pages4
Volume1
ISBN (Print)078030033
Publication statusPublished - 1991
EventProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91 - Toronto, Ont, Can
Duration: May 14 1991May 17 1991

Other

OtherProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
CityToronto, Ont, Can
Period5/14/915/17/91

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ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Loizou, P. C., & Spanias, A. (1991). Vector quantization of transform components for speech coding at 1200 bps. In Anon (Ed.), Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing (Vol. 1, pp. 245-248). Piscataway, NJ, United States: Publ by IEEE.