Title :
Speech enhancement based on temporal processing
Author :
Hermansky, Hynek ; Wan, Eric A. ; Avendano, Carlos
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., Oregon Graduate Inst. of Sci. & Technol., Portland, OR, USA
Abstract :
Finite impulse response (FIR) Wiener-like filters are applied to time trajectories of the cubic-root compressed short-term power spectrum of noisy speech recorded over cellular telephone communications. Informal listenings indicate that the technique brings a noticeable improvement to the quality of processed noisy speech while not causing any significant degradation to clean speech. Alternative filter structures are being investigated as well as other potential applications in cellular channel compensation and narrowband to wideband speech mapping
Keywords :
FIR filters; Wiener filters; acoustic noise; acoustic signal processing; cellular radio; digital filters; interference suppression; speech enhancement; FIR Wiener-like filters; cellular channel compensation; cellular telephone communications; clean speech; cubic-root compressed short-term power spectrum; degradation; filter structures; finite impulse response Wiener-like filters; narrowband to wideband speech mapping; noisy speech; processed noisy speech; quality; speech enhancement; temporal processing; time trajectories; Automatic speech recognition; Band pass filters; Degradation; Filtering; Finite impulse response filter; Frequency estimation; Frequency modulation; Frequency response; Low pass filters; Nonlinear filters; Speech analysis; Speech enhancement; Speech processing; Wiener filter;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.479607
