Publication detail

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

MOTLÍČEK, P.

Original Title

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

English Title

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

Type

conference paper

Language

en

Original Abstract

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.

English abstract

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.

Keywords

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

Released

20.03.2001

Publisher

Faculty of Electrical Engineering and Communication BUT

Location

Brno

ISBN

80-214-1860-5

Book

Proceedings of 7th Conference STUDENT EEICT 2001

Pages from

269

Pages to

274

Pages count

5

URL

Documents

BibTex


@inproceedings{BUT14399,
  author="Petr {Motlíček}",
  title="Application of Re-segmentation in Very Low Bit Rate Speech Coding",
  annote="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.",
  address="Faculty of Electrical Engineering and Communication BUT",
  booktitle="Proceedings of 7th Conference STUDENT EEICT 2001",
  chapter="14399",
  institution="Faculty of Electrical Engineering and Communication BUT",
  year="2001",
  month="march",
  pages="269--274",
  publisher="Faculty of Electrical Engineering and Communication BUT",
  type="conference paper"
}