• Corpus ID: 15238928

Minimally Audible Noise Shaping

@article{Lipshitz1991MinimallyAN,
  title={Minimally Audible Noise Shaping},
  author={Stanley P. Lipshitz and John Vanderkooy and Robert A. Wannamaker},
  journal={Journal of The Audio Engineering Society},
  year={1991},
  volume={39},
  pages={836-852}
}
Normal quantization or requantization noise is white, but the ear's sensitivity to low-level broad-band noise is not uniform with frequency. By adopting a suitable weighting curve to represent low-level noise audibility, one can design dithered requantizing noise shapers to approximate the inverse of the audibility curve and hence achieve the least audible noise penalty. If Fielder's modified E-weighting curve is adopted as a model of the 15-phon audibility curve, a reduction of 10.9 dB in… 

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