Article citationsMore>>

K. A. Sheela, CH. V. R. Rao, K. S. Prasad, and A. V. N. Tilak, “A new noise reduction preprocessor for mobile voice communication using perceptually weighted spectral subtraction method,” 3rd International Conferences on Mobile Ubiquitous and Pervasive Computing, VIT University, 16-19 December 2006.

has been cited by the following article:

• TITLE: A Perceptual Approach to Reduce Musical Noise Using Critical Bands Tonality Coefficients and Masking Thresholds

  AUTHORS: Ch. V. Rama Rao, M. B. Rama Murthy, K. Srinivasa Rao

  KEYWORDS: Noise Reduction, Musical Noise, Masking Threshold

  JOURNAL NAME: International Journal of Communications, Network and System Sciences, Vol.2 No.8, November 17, 2009

  ABSTRACT: Traditional noise reduction techniques have the drawback of generating an annoying musical noise. A new scheme for speech enhancement in high noise environment is developed by considering human auditory system masking characteristics. The new scheme considers the masking threshold of both noisy speech and the denoised one, to detect musical noise components. To make them inaudible, they are set under the noise masking threshold. The improved signal is subjected to extensive subjective and objective tests. It is ob-served that the musical noise is appreciably reduced even at very low signal to noise ratios.