Background noise reduction via dual-channel scheme for speech recognition in vehicular environment

Sungjoo Ahn, Hanseok Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper concerns an effective dual-channel noise reduction method to increase the performance of robust speech recognition in vehicular environment While various single channel methods have already been developed and dual-channel methods have been studied somewhat, their effectiveness in real environments, such as in vehicular, has not yet been formally proven in terms of achieving acceptable performance level. Our aim is to remedy the low performance of the single and dual-channel noise reduction methods. In particular, we propose a dual-channel noise reduction method based on a high-pass filter and front-end processing of the eigendecomposition method. Representative experiments were conducted with a real multichannel car corpus and results were compared with respect to the microphones arrangements. From the analysis and results, we show that the enhanced eigendecomposition method combined with high-pass filter indeed significantly improves the speech recognition performance under dual-channel environment.

Original languageEnglish
Title of host publicationDigest of Technical Papers - IEEE International Conference on Consumer Electronics
Pages461-462
Number of pages2
Publication statusPublished - 2005
Event2005 Digest of Technical Papers - International Conference on Consumer Electronics, ICCE 2005 - Las Vegas, NV, United States
Duration: 2005 Jan 82005 Jan 12

Other

Other2005 Digest of Technical Papers - International Conference on Consumer Electronics, ICCE 2005
CountryUnited States
CityLas Vegas, NV
Period05/1/805/1/12

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

Cite this

Ahn, S., & Ko, H. (2005). Background noise reduction via dual-channel scheme for speech recognition in vehicular environment. In Digest of Technical Papers - IEEE International Conference on Consumer Electronics (pp. 461-462). [11.4-4]