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General Information
    • ISSN: 1793-8244
    • Frequency: Semiyearly
    • DOI: 10.18178/JACN
    • Editor-in-Chief: Dr. Ka Wai Gary Wong
    • Executive Editor: Ms. Nina Lee
    • Abstracting/ Indexing: EI (INSPEC, IET), Engineering & Technology Digital Library, DOAJ, Electronic Journals Library, Ulrich's Periodicals Directory, International Computer Science Digital Library (ICSDL), ProQuest, and Google Scholar.
    • E-mail: jacn@ejournal.net
Editor-in-chief
Dr. Ka Wai Gary Wong
Division of Information and Technology Studies, Faculty of Education, The University of Hong Kong.
It's a honor to serve as the editor-in-chief of JACN. I'll work together with the editors and reviewers to help the journal progress
JACN 2014 Vol.2(1): 63-66 ISSN: 1793-8244
DOI: 10.7763/JACN.2014.V2.83

A Front-End Processing Using Subspace-Based Speech Enhancement over Mobile Devices

M. R. L. Daalache, D. Addou, and M. Boudraa
Abstract—The paradigm multi-stream has been shown to result in features combined that can help to increase the robustness of distributed speech recognition (DSR) in the mobile communications. In this paper, we employs a combination of post proceeded Mel-cepstral coefficients (MFCCs) and line spectral frequencies features (LSFs) projected in linear discriminate analysis (LDA) space. The experiments performed on the Aurora 2.0 database using multi-condition training set show that, even with fewer parameters, the proposed front-end provides comparable recognition results to the standard ETSI WI008 advanced front-end, nowadays available in the vocal commands of the GSM mobile communications, while achieving higher accuracy when the signal-to-noise ratio (SNR) is very low.

Index Terms—Distributed speech recognition, linear discriminate analysis, multi-stream hidden Markov models, Mel-cepstral coefficients, line spectral frequencies.

M. R. L. Daalache is with the University of Technology USTHB, P.O. Box 32 Bab Ezzouar, Algiers, Algeria (Corresponding author, email: mdaalache@usthb.dz).
D. Addou is with the University of Technology USTHB, P.O. Box 32 Bab Ezzouar, Algiers, Algeria (email: daddou@usthb.dz).
M. Boudraa is with Faculty of Electronics and Computer Sciences, FEI, Bab Ezzouar, Algiers, Algeria (email: mboudraa@usthb.dz).

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Cite:M. R. L. Daalache, D. Addou, and M. Boudraa, "A Front-End Processing Using Subspace-Based Speech Enhancement over Mobile Devices," Journal of Advances in Computer Networks vol. 2, no. 1, pp. 63-66, 2014.

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