Publication Details

Application of Re-segmentation in Very Low Bit Rate Speech Coding

MOTLÍČEK, P. Application of Re-segmentation in Very Low Bit Rate Speech Coding. Proceedings of 7th Conference STUDENT EEICT 2001. Brno: Faculty of Electrical Engineering and Communication BUT, 2001. p. 269-274. ISBN: 80-214-1860-5.
Czech title
Aplikacere-segmentace v kódovaání řeči na velmi nízkých bitových rychlostech
Type
conference paper
Language
English
Authors
Motlíček Petr, doc. Ing., Ph.D. (DCGM)
URL
Keywords

speech coding, speech synthesis, very low bit rate speech coding

Abstract

Application of Re-segmentation in Very Low Bit Rate Speech Coding

Annotation

The aim of our effort is to reach higher quality of resulting speech coded by very low bit rate (VLBR) segmental coder. The basic units are found automatically in a training database using temporal decomposition and vector quantization. They are modeled by HMMs. Then two methods of re-segmentation were used in order to find new longer units. In the first approach borders are set to the centers of previous units. In the second, borders are fixed to the centers of middle HMM states of previous units. Number of frames in new units is conditioned to be bigger than a fixed constant. Hence, new units can consist of a several previous segments. Decreasing transition noise of resultant speech was obtained using these techniques.

Published
2001
Pages
269–274
Proceedings
Proceedings of 7th Conference STUDENT EEICT 2001
ISBN
80-214-1860-5
Publisher
Faculty of Electrical Engineering and Communication BUT
Place
Brno
BibTeX 
@inproceedings{BUT14399,
  author="Petr {Motlíček}",
  title="Application of Re-segmentation in Very Low Bit Rate Speech Coding",
  booktitle="Proceedings of 7th Conference STUDENT EEICT 2001",
  year="2001",
  pages="269--274",
  publisher="Faculty of Electrical Engineering and Communication BUT",
  address="Brno",
  isbn="80-214-1860-5",
  url="http://www.fit.vutbr.cz/~motlicek/publi/2001/stc01.ps"
}
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