본문 바로가기
  • Home

Speech Recognition using Spectral Information under Noisy Environments

  • Journal of Knowledge Information Technology and Systems
  • Abbr : JKITS
  • 2010, 5(5), pp.163-169
  • Publisher : Korea Knowledge Information Technology Society
  • Research Area : Interdisciplinary Studies > Interdisciplinary Research
  • Published : October 31, 2010

이광석 1 김현주 1

1진주산업대학교

Candidate

ABSTRACT

This research is concerned for improving the result of speech recognition under the noisy speech. We knew that spectral subtraction and recovery of valleys in spectral envelope obtained from noisy speech are more effective for the improvement of the recognition. In this research, the averaged spectral envelope obtained from vowel spectrums are used for the emphasis of valleys. The vocalic spectral information at lower frequency range is emphasized and the spectrum obtained from consonants is not changed. In simulation, the emphasis coefficients are varied on cepstral domain. This method is used for the recognition of noisy digits and is improved well.

Citation status

* References for papers published after 2023 are currently being built.