An apparatus and method for the application of perceptual processing techniques to the speech Fourier spectrum to achieve a perceptual spectrum that is based upon human auditory perception embodied in a perceptual speech processor comprising a noise masker utilizing a masking winner-take-all circuit, a magnitude renormalizer for translating objective signal magnitude to a subjective loudness minimum audible field, and a mel-scale frequency adjuster for adjusting the physical Hertz frequency of a signal to the perceptual mel-scale frequency.
Robust perceptual speech processing system and method