TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION.

Takehiro Moriya, Masaaki Honda

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

8 Citations (Scopus)

Abstract

A transform coding of speech that uses a weighted vector quantization scheme is propopsed. First, the characteristics of the weighted vector quantization are checked. Then based on these considerations, a frequency-domain coder is designed for medium-band (4. 8-9. 6 kb/s) speech coding. In this coding scheme, the linear prediction residue is transformed and vector-quantized. In order to control the quantization errors in the frequency domain, adaptively weighted matching is used instead of the conventional adaptive bit allocation. Therefore, the residual signal can be reconstructed by the decoder, even if the spectral envelope parameters are destroyed due to transmission errors. The coded speech is natural and unaffected by background noise and its mean opinion score at 7. 2 kb/ps is comparable to that of 5. 5-b log PCM-coded speech.

Original languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages1629-1632
Number of pages4
Publication statusPublished - 1987
Externally publishedYes

Fingerprint

vector quantization
Vector quantization
coding
Speech coding
Pulse code modulation
linear prediction
decoders
background noise
coders
envelopes

ASJC Scopus subject areas

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

Cite this

Moriya, T., & Honda, M. (1987). TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 1629-1632). IEEE.

TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION. / Moriya, Takehiro; Honda, Masaaki.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, 1987. p. 1629-1632.

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

Moriya, T & Honda, M 1987, TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, pp. 1629-1632.
Moriya T, Honda M. TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE. 1987. p. 1629-1632
Moriya, Takehiro ; Honda, Masaaki. / TRANSFORM CODING OF SPEECH WITH WEIGHTED VECTOR QUANTIZATION. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, 1987. pp. 1629-1632
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