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SPEECH ENHANCEMENT FOR HEARING AIDS

SPEECH ENHANCEMENT FOR HEARING AIDS,Douglas R. Campbell

SPEECH ENHANCEMENT FOR HEARING AIDS   (Citations: 2)
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The performance of hearing aids in noisy reverberant surroundings remains a major source of complaint and discomfort to wearers. Given the current capabilities and pace of development in microelectronics, the major problem is to find successful speech enhancement schemes. "Binaural unmasking" experiments demonstrate an enhancement advantage, due to binaural correlation properties, which can lower the hearing threshold in noise and there is evidence that this may operate in frequency sub-bands. The performance is presented of an adaptive sub-band noise cancellation scheme which supports the possibility of performing "binaural unmasking" outwith the body, and is shown to be capable of out-performing a standard noise-cancellation scheme in the presence of reverberation.
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    • ...benefit of supporting adaptive diverse parallel processing in the sub-bands (Campbell, 1996; Toner...
    • ...radiators (Toner and Campbell, 1993), however performance deteriorates in reverberant environments (Campbell, 1996)...
    • ...reverberation and speech/noise spectral overlap (Toner and Campbell, 1993; Campbell, 1996)...
    • ...enhancement in both simulated and real reverberant environments (Toner and Campbell, 1993; Bouquin et al., 1994; Campbell, 1996)...
    • ...multiple sensors (Toner and Campbell, 1993; Campbell, 1996; Hussain et al, 1997c)...
    • ...has been shown in previous work by the authors (Toner and Campbell, 1993; Campbell, 1996;...

    Amir Hussainet al. Binaural sub-band adaptive speech enhancement using artificial neural ...

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