Title :
A robust speech recognition system using FRM running spectrum filtering
Author :
Hayasaka, Noboru ; Wada, Naoya ; Yoshizawa, Shingo ; Miyanaga, Yoshikazu
Author_Institution :
Graduate Sch. of Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
This report introduces a new approach of FRM technique for a robust speech recognition system. We have already developed intelligent filtering techniques for robust speech recognition. In this method, a conventional FIR band-pass filter is applied on speech running power spectrum. In order to improve recognition accuracy, the designed FIR filter becomes high order considerably. Using a FRM filter, we can develop a new robust speech recognition whose recognition ability is high enough and whose filtering order can be reduced. Using this new FRM filter, some speech recognition experiments are shown in this report.
Keywords :
FIR filters; band-pass filters; speech recognition; FIR band-pass filter; FRM running spectrum filtering; speech recognition system; Acoustic noise; Additive noise; Filtering; Finite impulse response filter; Fires; Hidden Markov models; Nonlinear filters; Robustness; Speech enhancement; Speech recognition;
Conference_Titel :
Control, Communications and Signal Processing, 2004. First International Symposium on
Print_ISBN :
0-7803-8379-6
DOI :
10.1109/ISCCSP.2004.1296313