Notionally steady background noise acts primarily as a modulation masker of speech.

@article{Stone2012NotionallySB,
  title={Notionally steady background noise acts primarily as a modulation masker of speech.},
  author={Michael A. Stone and Christian F{\"u}llgrabe and Brian C. J. Moore},
  journal={The Journal of the Acoustical Society of America},
  year={2012},
  volume={132 1},
  pages={317-26}
}
Stone et al. [J. Acoust. Soc Am. 130, 2874-2881 (2011)], using vocoder processing, showed that the envelope modulations of a notionally steady noise were more effective than the envelope energy as a masker of speech. Here the same effect is demonstrated using non-vocoded signals. Speech was filtered into 28 channels. A masker centered on each channel was added to the channel signal at a target-to-background ratio of -5 or -10 dB. Maskers were sinusoids or noise bands with bandwidth 1/3 or 1 ERB… CONTINUE READING
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“ Effects of spectral smearing and temporal fine - structure distortion on the fluctuating - masker benefit for speech at a fixed signal - to - noise ratio

  • J. G. W. Bernstein, K. W. Grant
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