Speech Communication - Eurospeech '91
Subjective comparison and evaluation of speech enhancement algorithms
Speech Communication
Evaluation of Objective Quality Measures for Speech Enhancement
IEEE Transactions on Audio, Speech, and Language Processing
DSP'09 Proceedings of the 16th international conference on Digital Signal Processing
The importance of phase in speech enhancement
Speech Communication
Effects of intra-frame noise smoothing on speech enhancement algorithms
NOLISP'11 Proceedings of the 5th international conference on Advances in nonlinear speech processing
Real and imaginary modulation spectral subtraction for speech enhancement
Speech Communication
An efficient solution to improve the spectral noise suppression rules
Digital Signal Processing
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The traditional power spectral subtraction algorithm is computationally simple to implement but suffers from musical noise distortion. In addition, the subtractive rules are based on incorrect assumptions about the cross terms being zero. A new geometric approach to spectral subtraction is proposed in the present paper that addresses these shortcomings of the spectral subtraction algorithm. A method for estimating the cross terms involving the phase differences between the noisy (and clean) signals and noise is proposed. Analysis of the gain function of the proposed algorithm indicated that it possesses similar properties as the traditional MMSE algorithm. Objective evaluation of the proposed algorithm showed that it performed significantly better than the traditional spectral subtractive algorithm. Informal listening tests revealed that the proposed algorithm had no audible musical noise.