On Line Noise Suppression for Enhancing Speech Recognition
K. Urbanowicz, P. Fronczak and J.A. HoƂyst
Faculty of Physics, Center of Excellence for Complex Systems Research, Warsaw University of Technology, Koszykowa 75, PL-00-662 Warsaw, Poland
Received: September 30, 2008
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An experimental setup has been designed that makes possible a real time noise reduction and an increase of automatic word recognition rate. The applied algorithm uses a dynamical filtering method for investigated time series and has been implemented in Spartan 3 FPGA evaluation board RC10 made by Celoxica. We show that our approach increases the number of correctly recognized words in the commercial speech recognition program ViaVoice 10.
DOI: 10.12693/APhysPolA.116.119
PACS numbers: 05.45.Tp, 43.72.Dv, 43.50.Ki, 43.72.Ne