Title :
Two-stage Noise Spectra Estimation and Regression based In-car Speech Recognition using Single Distant Microphone
Author :
Li, Weifeng ; Itou, Katunobu ; Takeda, Kazuya ; Itakura, Fumitada
Author_Institution :
Graduate Sch. of Eng., Nagoya Univ., Japan
fDate :
March 18-23, 2005
Keywords :
acoustic noise; approximation theory; error statistics; maximum likelihood estimation; random noise; recursive estimation; regression analysis; speech enhancement; speech recognition; MAP estimator; MAP noise amplitude estimator; estimation error; improved minima controlled recursive averaging method; in-car speech recognition; maximum a posteriori noise amplitude estimator; regression-based speech enhancement; two-stage noise spectra estimation; word error rate; Amplitude estimation; Background noise; Microphones; Neural networks; Noise level; Recursive estimation; Speech enhancement; Speech recognition; Statistics; Working environment noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1415168
