Discrete Time Processing of Speech Signals
Discrete Time Processing of Speech Signals
Single-channel speech enhancement in variable noise-level environment
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Transform coding of audio signals using perceptual noise criteria
IEEE Journal on Selected Areas in Communications
Wavelet based speech presence probability estimator for speech enhancement
Digital Signal Processing
Application of perceptual filtering models to noisy speech signals enhancement
Journal of Electrical and Computer Engineering
Design and Implementation of a Fixed-Mobile Convergent Music Search Engine (FMC-MUSE)
Wireless Personal Communications: An International Journal
Bandpass Filter with Wide Stopband Using Composite Right/Left Handed Transmission Line
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
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We propose an improved spectral subtraction method for reducing acoustic noise added to speech in noisy environments like helicopter cockpit or car engine. This implementation uses oversubtraction method for spectral subtraction. Residual noise can be masked by exploiting the masking properties of the human auditory system. A psychoacoustically motivated weighting filter was included to eliminate residual musical noise. Simulations showed a better quality with no distortion for the enhanced speech and the musical noise was effectively masked.