Title :
Adaptive postfiltering applied to speech in noise
Author :
Conway, Robert J. ; Sreenivas, Thippur V. ; Niederjohn, Russell J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA
Abstract :
Results of a preliminary investigation of the application of the postfiltering technique to the problem of enhancing the intelligibility of speech that has been corrupted by additive noise are presented. Results from preliminary intelligibility tests are discussed. It is concluded that with reasonably accurate estimates of the underlying speech features (i.e. formants, V/UV decision), postfiltering can indeed increase the intelligibility of voiced speech corrupted by high levels of noise
Keywords :
filtering and prediction theory; random noise; speech analysis and processing; speech intelligibility; V/UV decision; adaptive postfiltering; additive noise; formants; intelligibility; postfiltering technique; speech features; voiced speech; Acoustic noise; Additive noise; Distortion measurement; Filters; Frequency; Noise reduction; Quantization; Speech analysis; Speech coding; Speech enhancement;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101804
