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From Maskee to Audible Noise in Perceptual Speech Enhancement

Authors: Driss Aboutajdine, Asmaa Amehraye, Dominique Pastor, Ahmed Tamtaoui

Abstract:

A new analysis of perceptual speech enhancement is presented. It focuses on the fact that if only noise above the masking threshold is filtered, then noise below the masking threshold, but above the absolute threshold of hearing, can become audible after the masker filtering. This particular drawback of some perceptual filters, hereafter called the maskee-to-audible-noise (MAN) phenomenon, favours the emergence of isolated tonals that increase musical noise. Two filtering techniques that avoid or correct the MAN phenomenon are proposed to effectively suppress background noise without introducing much distortion. Experimental results, including objective and subjective measurements, show that these techniques improve the enhanced speech quality and the gain they bring emphasizes the importance of the MAN phenomenon.

Keywords: Perceptual speech filtering, maskee to audible noise, distorsion, musical noise

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1075458

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References:


[1] N. Virag, "Single channel speech enhancement based on masking properties of the human auditory system," IEEE Trans. Speech and Audio Processing, vol. 7, pp. 126-137, 1999.
[2] Y. Hu and P. Loizou, "Incorporating a psychoacoustic model in frequency domain speech enhancement," IEEE Signal Processing Letters, vol. 11(2), pp. 270-273, Feb 2004.
[3] L. Lin, W. H. Holmes, and E. Ambikairajah, "Speech denoising using perceptual modification of wiener filtering," IEE Electronic Letters, vol. 38, pp. 1486-1487, Nov 2002.
[4] Y. Ephraim and D. Malah, "Speech enhancement using a minimum mean square error short-time spectral amplitude estimator," IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-32, pp. 1109-1121, Dec 1984.
[5] A. Amehraye, D. Pastor, and A. Tamtaoui, "Perceptual improvement of wiener filtering." Proc. of ICASSP, 2008, pp. 2081-2084.
[6] C. Beaugeant, V. Turbin, P. Scalart, and A. Gilloire, "New optimal filtering approaches for hands-free telecommunication terminals," Signal Processing, vol. 64, pp. 33-47(15), Jan 1998.
[7] J. D. Johnston, "Transform coding of audio signals using perceptual noise criteria," IEEE Jour. Selected Areas Commun, vol. 6, pp. 314-323, 1988.
[8] ITU-T(2003), "Subjective test methodology for evaluating speech communication systems that include noise suppression algorithm," ITU-T Recommendation P.835, 2003.