00000nam 2200000zi 4500 9.890788 CaOODSP 20221107172712 m o d f cr cn||||||||| 200821s1993 onc ob f000 0 eng d CaOODSP eng rda CaOODSP Co24-3/8-1993-2E-PDF Gong, Yifan, author. Speech recognition in noisy environments : a survey / Yifan Gong and William C. Treurniet. Ottawa : Broadcast Technologies Research Branch, Communications Research Centre, Department of Communications, 1993. 1 online resource (v, 28 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier [CRC technical note] ; CRC-TN 93-002 "June, 1993." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Includes bibliographical references (pages 19-28). "The performance levels of most current speech recognizers degrade significantly when unpredictable noise occurs during use. Such performance degradation is caused by mismatches in training and operating environments. During recent years much effort has been directed to reducing this mismatch. This paper surveys research results in the area of single microphone noisy speech recognition classified in three categories: noise resistant features and similarity measurement, speech enhancement, and speech model compensation for noise. The survey indicates that the essential points in noisy speech recognition consist of incorporating time and frequency correlations, giving more importance to high SNR portions of speech in decision making, exploiting task-specific a priori knowledge both of speech and of noise, and including auditory models in speech processing"--Abstract, page iii. Issued also in print format. Automatic speech recognition. Reconnaissance automatique de la parole. Communications Research Centre (Canada), issuing body. CRC technical note ; no. 93-002. (CaOODSP)9.882494 PDF 1.25 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-8-1993-2-eng.pdf