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  • Title: Speech perception of noise with binary gains.
    Author: Wang D, Kjems U, Pedersen MS, Boldt JB, Lunner T.
    Journal: J Acoust Soc Am; 2008 Oct; 124(4):2303-7. PubMed ID: 19062868.
    Abstract:
    For a given mixture of speech and noise, an ideal binary time-frequency mask is constructed by comparing speech energy and noise energy within local time-frequency units. It is observed that listeners achieve nearly perfect speech recognition from gated noise with binary gains prescribed by the ideal binary mask. Only 16 filter channels and a frame rate of 100 Hz are sufficient for high intelligibility. The results show that, despite a dramatic reduction of speech information, a pattern of binary gains provides an adequate basis for speech perception.
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