Publication detail

Spectral flatness method based empty pause detection in noisy and clean speech conditions

STEJSKAL, V. ESPOSITO, A.

Original Title

Spectral flatness method based empty pause detection in noisy and clean speech conditions

Type

conference paper

Language

English

Original Abstract

Successful pause detection becomes an important part in the process of speech recognition and speech coding as well as in the biometrical field (stress detection) and human-machine interaction. Nowadays, only a few of proposed algorithms are able to reflect various noise conditions. This is considered in presented paper which results from research that has been made at the International Institute for Advanced Scientific Studies (IIASS) and proposes novel method for non-speech activity pause detection in spontaneous speech recordings made in noisy environments. The input signal is transformed into log spectral energy and is divided into specific frequency bands. Each band is smoothed and tracked by dynamically adjusted thresholds based on noise energy estimation. Thresholds are adapted taking into account the dynamic changes of the speech signal under environmental noise. The proposed method run in real time and does not require a priori knowledge of the SNR and a priori threshold values. Experimental results show that its efficacy is comparable with standard VADs.

Keywords

speech, pause detection, noise

Key words in English

speech, pause detection, noise

Authors

STEJSKAL, V.; ESPOSITO, A.

RIV year

2006

Released

1. 1. 2006

Publisher

Institute of Radio Engineering and Electronics AS CR

Location

Praha

ISBN

8086269159

Book

16th Czech-German Workshop on Speech Processing

Pages from

125

Pages to

254

Pages count

130

BibTex

@inproceedings{BUT24827,
  author="Vojtěch {Stejskal} and Anna {Esposito}",
  title="Spectral flatness method based empty pause detection in noisy and clean speech conditions",
  booktitle="16th Czech-German Workshop on Speech Processing",
  year="2006",
  pages="130",
  publisher="Institute of Radio Engineering and Electronics AS CR",
  address="Praha",
  isbn="8086269159"
}