NDLI: Experiments of in-car audio compensation for hands-free speech recognition

Content Provider	IEEE Xplore Digital Library
Author	Matassoni, M. Omologo, M. Zieger, C.
Copyright Year	2003
Description	Author affiliation: ITC-irst, Trento, Italy (Matassoni, M.; Omologo, M.; Zieger, C.)
Abstract	The work presented in this paper aims at improving in-car speech recognition performance in presence of interfering signals diffused by the loudspeakers, addressing the well known problem of acoustic echo cancellation. A NLMS-based technique has been tested with real in-car speech recordings and issues like algorithm parameters and convergence or test/training mismatch have been investigated. The echo canceller shows good properties such as acceptable adaptation speed and negligible speech distortion: in the best configuration the WER was lowered from 18.3% to 5.5%. Beneficial effects have also been observed by adopting a contamination technique in the acoustic model training phase.
Starting Page	369
Ending Page	374
File Size	430641
Page Count	6
File Format	PDF
ISBN	0780379802
DOI	10.1109/ASRU.2003.1318469
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech recognition Echo cancellers Loudspeakers Automatic speech recognition Acoustic testing Acoustic distortion Robustness Microphones Automotive applications Engines
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Experiments of in-car audio compensation for hands-free speech recognition