The Journal of the Acoustical Society of Korea

한국음향학회 (The Acoustical Society of Korea)
권호 표지

Robust Speech Detection Based on Useful Bands for Continuous Digit Speech over Telephone Networks

  • Ji, Mi-Kyongi (School of Engineering, Information and Communications University) ;
  • Suh, Young-Joo (School of Engineering, Information and Communications University) ;
  • Kim, Hoi-Rin (School of Engineering, Information and Communications University) ;
  • Kim, Sang-Hun (Speech Information Technology Center, ETRI)
  • 발행 : 2003.09.01
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초록

One of the most important problems in speech recognition is to detect the presence of speech in adverse environments. In other words, the accurate detection of speech boundary is critical to the performance of speech recognition. Furthermore the speech detection problem becomes severer when recognition systems are used over the telephone network, especially wireless network and noisy environment. Therefore this paper describes various speech detection algorithms for continuous digit recognition system used over wire/wireless telephone networks and we propose a algorithm in order to improve the robustness of speech detection using useful band selection under noisy telephone networks. In this paper, we compare some speech detection algorithms with the proposed one, and present experimental results done with various SNRs. The results show that the new algorithm outperforms the other speech detection methods.

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참고문헌

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