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Effect of low-frequency gain reduction on speech recognition and its relation to upward spread of masking.

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Title: Effect of low-frequency gain reduction on speech recognition and its relation to upward spread of masking.
Authors: Cook JA (AUTHOR), Bacon SP (AUTHOR), Sammeth CA (AUTHOR)
Source: Journal of Speech, Language & Hearing Research. Apr1997, Vol. 40 Issue 2, p410-422. 13p.
Abstract: Speech recognition was measured in listeners with normal hearing and in listeners with sensorineural hearing loss under conditions that simulated hearing aid processing in a low-pass and speech-shaped background noise. Differing amounts of low-frequency gain reduction were applied during a high-frequency monosyllable test and a sentence level test to simulate the frequency responses of some commercial hearing aids. The results showed an improvement in speech recognition with low-frequency gain reduction in the low-pass noise, but not in the speech-shaped background noise. Masking patterns also were obtained with the two background noises at 70 and 80 dB SPL to compare with the speech results. There was no correlation observed between the masking results and the improvement in speech recognition with low-frequency gain reduction. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
URL: 9710295756
Database: Education Research Complete
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  Data: Effect of low-frequency gain reduction on speech recognition and its relation to upward spread of masking.
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  Data: <searchLink fieldCode="AR" term="%22Cook+JA%22">Cook JA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bacon+SP%22">Bacon SP</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sammeth+CA%22">Sammeth CA</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Speech%2C+Language+%26+Hearing+Research%22">Journal of Speech, Language & Hearing Research</searchLink>. Apr1997, Vol. 40 Issue 2, p410-422. 13p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Speech recognition was measured in listeners with normal hearing and in listeners with sensorineural hearing loss under conditions that simulated hearing aid processing in a low-pass and speech-shaped background noise. Differing amounts of low-frequency gain reduction were applied during a high-frequency monosyllable test and a sentence level test to simulate the frequency responses of some commercial hearing aids. The results showed an improvement in speech recognition with low-frequency gain reduction in the low-pass noise, but not in the speech-shaped background noise. Masking patterns also were obtained with the two background noises at 70 and 80 dB SPL to compare with the speech results. There was no correlation observed between the masking results and the improvement in speech recognition with low-frequency gain reduction. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Apr1997
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