第22回 ロボット聴覚特集 - 奥乃研究室 - 京都大学

Word correct (%)1009080706050403020100leftJulius + MFCCJulius + LSMSMultiband Julius + LSMS + MFTcenter rightleftcenter rightleftcenter right30 deg. 60 deg. 90 deg.Directionsa) ATR 400 Word correct (%)1009080706050403020100leftJulius + MFCCJulius + LSMSMultiband Julius + LSMS + MFTcenter rightleftcenter rightleftcenter right30 deg. 60 deg. 90 deg.Directionsb) ATR 20,000 Figure 6: 8 1) MFT 2) MFM 3) MFT Julius 60% MFM (A) 21 COE() Julian Sherbrooke Rouat Michaud [1] AURORA. http://www.elda.fr/proj/aurora1.html”“http://www.elda.fr/proj/aurora2.html.[2] D. Pearce. Developing the ETSI AURORA advanceddistributed speech recognition front-end & what next.Proc. of Eurospeech-2001. ESCA, 2001.[3] M. Blanchet, J. Boudy, and P. Lockwood. Environmentadaptationfor speech recognition in noise. Proc. ofEUSIPCO-92, pp.391–394, 1992.[4] R. P. Lippmann, E. A. Martin, and D. B. Paul. Multistyletrainingfor robust isolated-word speech recognition.Proc. of IEEE ICASSP-87, pp.705–708, 1987.[5] , , , . . 18 AI , pp.27–32, 2003.[6] K. Nakadai, D. Matasuura, H.G. Okuno, and H. Tsujino.Improvement of recognition of simultaneous speechsignals using av integration and scattering theory for humanoidrobots. Speech Communication, 44(1-4):97–112,October 2004.[7] J. Barker, M. Cooke, and P. Green. Robust ASR basedon clean speech models: An evaluation of missing datatechniques for connected digit recognition in noise. Proc.of Eurospeech-2001, pp.213–216.[8] P. Renevey, R. Vetter, and J. Kraus. Robust speechrecognition using missing feature theory and vectorquantization. Proc. of Eurospeech-2001, volume 2, pages1107–1110. ESCA, 2001.[9] , , , . . , Vol.23,No.6, pp.743–751, 2005.[10] CASA Toolkit.http://www.dcs.shef.ac.uk/ jon/ctk.html.[11] , , , . . In 2004 , volume 1, pages117–118, 2004.[12] J.-M. Valin, J. Rouat, and F. Michaud. Enhanced robotaudition based on microphone array source separationwith post-filter. Proc. of IEEE/RSJ IROS 2004, 2004.[13] I. Cohen and B. Berdugo. Microphone array postfilteringfor non-stationary noise suppression. Proc. ofICASSP-2002, pp.901–904, 2002.[14] T. Kawahara and A. Lee. Free software toolkit forjapanese large vocabulary continuous speech recognition.Proc. of ICSLP-2000, pp.476–479, 2000.106