Title :
Fourier Domain Speech Enhancement by Constrained Optimization and Temporal Masking
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Miami, Coral Gables, FL
Abstract :
A speech enhancement algorithm is proposed that exploits the masking properties of the human auditory system. A clean speech estimator is derived in such a way that both the signal distortion and residual noise are kept inaudible. Temporal as well as simultaneous masking effects are incorporated in estimation of the masking thresholds. The proposed speech enhancement algorithm is evaluated by log spectral distortion and ITU PESQ scores. Experimental results indicate that the proposed method out-performs a former psychoacoustically motivated speech enhancement algorithm
Keywords :
Fourier analysis; distortion; noise; speech enhancement; Fourier domain speech enhancement; human auditory system; log spectral distortion; noise; signal distortion; temporal masking; Additive noise; Auditory system; Constraint optimization; Discrete cosine transforms; Fourier transforms; Humans; Masking threshold; Psychoacoustic models; Psychology; Speech enhancement; Speech enhancement; psychoacoustical model; temporal masking;
Conference_Titel :
Digital Signal Processing Workshop, 12th - Signal Processing Education Workshop, 4th
Conference_Location :
Teton National Park, WY
Print_ISBN :
1-4244-3534-3
Electronic_ISBN :
1-4244-0535-1
DOI :
10.1109/DSPWS.2006.265491
