TY - GEN
T1 - Noise processing DTW algorithms for speech recognition systems
AU - Berstein, Alberto D.
AU - Shallom, Ilan D.
N1 - Publisher Copyright:
© Proceedings - 17th Convention of Electrical and Electronics Engineers in Israel, EEIS 1991. All rights reserved.
PY - 1991/1/1
Y1 - 1991/1/1
N2 - The problem of Speech Recognition in a noisy environment is addressed. Particularly the mismatch problem originated when training a system in a "clean" environment and operating it in a noisy one. When measuring the similarity between a noisy test utterance and a list of clean templates a correction process, based on a series of Wiener filters built using the hypothesized clean template, is applied to the feature vectors of the noisy word. The filtering process is optimized as a by product of the Dynamic Programing algorithm of the scoring step. Tests were conducted at the simulation level on two data bases, one in Hebrew and the second in Japanese, using additive white noise and real world car noise at different SNRs. The method shows a very good performance and compares well with other methods proposed in the literature.
AB - The problem of Speech Recognition in a noisy environment is addressed. Particularly the mismatch problem originated when training a system in a "clean" environment and operating it in a noisy one. When measuring the similarity between a noisy test utterance and a list of clean templates a correction process, based on a series of Wiener filters built using the hypothesized clean template, is applied to the feature vectors of the noisy word. The filtering process is optimized as a by product of the Dynamic Programing algorithm of the scoring step. Tests were conducted at the simulation level on two data bases, one in Hebrew and the second in Japanese, using additive white noise and real world car noise at different SNRs. The method shows a very good performance and compares well with other methods proposed in the literature.
UR - http://www.scopus.com/inward/record.url?scp=84055175959&partnerID=8YFLogxK
U2 - 10.1109/EEIS.1991.217639
DO - 10.1109/EEIS.1991.217639
M3 - Conference contribution
AN - SCOPUS:84055175959
T3 - Proceedings - 17th Convention of Electrical and Electronics Engineers in Israel, EEIS 1991
SP - 293
EP - 296
BT - Proceedings - 17th Convention of Electrical and Electronics Engineers in Israel, EEIS 1991
PB - Institute of Electrical and Electronics Engineers
T2 - 17th Convention of Electrical and Electronics Engineers in Israel, EEIS 1991
Y2 - 5 March 1991 through 7 March 1991
ER -