Title :
Utilizing interband acoustical information for modeling stationary time-frequency regions of noisy speech
Author_Institution :
Korea Telecom, Seoul, South Korea
Abstract :
A novel enhancement system is developed that exploits the properties of stationary regions localized in both time and frequency. This system selects stationary time-frequency (TF) regions and adaptively enhances each region according to its local signal-to-noise ratio (LSNR) while utilizing both the acoustical knowledge of speech and the masking properties of the human auditory system. Each region is enhanced for maximum noise reduction while minimizing distortion. This paper evaluates the proposed system through informal listening tests and some objective measures
Keywords :
acoustic noise; speech enhancement; time-frequency analysis; distortion; enhancement system; human auditory system; interband acoustical information; listening tests; local signal-to-noise ratio; masking properties; noise reduction; noisy speech; stationary regions; stationary time-frequency regions; Acoustic distortion; Acoustic testing; Auditory system; Humans; Noise reduction; Signal to noise ratio; Speech coding; Speech enhancement; System testing; Time frequency analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.759794
