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Evaluation of wideband frequency responses and non-linear frequency compression for children with mild to moderate high-frequency hearing loss.

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Title: Evaluation of wideband frequency responses and non-linear frequency compression for children with mild to moderate high-frequency hearing loss.
Authors: Wolfe, Jace1 (AUTHOR) jace.wolfe@heartsforhearing.org, John, Andrew2 (AUTHOR), Schafer, Erin3 (AUTHOR), Hudson, Mary2 (AUTHOR), Boretzki, Michael4 (AUTHOR), Scollie, Susan5 (AUTHOR), Woods, Whitney2 (AUTHOR), Wheeler, Julie2 (AUTHOR), Hudgens, Krystal1 (AUTHOR), Neumann, Sara1 (AUTHOR)
Source: International Journal of Audiology. Mar2015, Vol. 54 Issue 3, p170-181. 12p. 2 Color Photographs, 2 Charts, 7 Graphs.
Subject Terms: Analysis of variance, Hearing aids, Hard of hearing children, Randomized controlled trials, Repeated measures design, Severity of illness index
Abstract: Objective: To evaluate wideband amplification and non-linear frequency compression (NLFC) as a means to improve speech recognition for children with mild/moderate hearing loss. Design: Randomized within-subject design with repeated measures across test conditions. Study sample: Eleven children with mild to moderate hearing loss were evaluated with: (1) Phonak BTE without NLFC, (2) Phonak BTE with NLFC, and (3) Oticon BTE with wideband response extending to 8000 Hz. Results: Use of NLFC provided better detection and recognition of high-frequency stimuli (e.g. /sh/ and /s/). No difference in performance between conditions was observed for speech recognition when measured with the University of Western Ontario (UWO) plurals test and the UWO distinctive features difference test. Finally, there were no differences between conditions on the BKB-SIN test. Conclusions: Children with mild to moderate hearing loss have good access to high-frequency phonemes presented at fixed levels (e.g. 50 to 60 dBA) with both wideband and NLFC technology. Similarly, sentence recognition in noise was similar with wideband and NLFC. Adaptive test procedures that probe performance at lower input levels showed small but significant improvements in the detection and recognition of the phonemes /s/ and /sh/ with NLFC condition when compared to the NLFC Off and wideband conditions. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Audiology is the property of Taylor & Francis Ltd 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.)
Database: Education Research Complete
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DbLabel: Education Research Complete
An: 101349148
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Evaluation of wideband frequency responses and non-linear frequency compression for children with mild to moderate high-frequency hearing loss.
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  Data: <searchLink fieldCode="AR" term="%22Wolfe%2C+Jace%22">Wolfe, Jace</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jace.wolfe@heartsforhearing.org</i><br /><searchLink fieldCode="AR" term="%22John%2C+Andrew%22">John, Andrew</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schafer%2C+Erin%22">Schafer, Erin</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hudson%2C+Mary%22">Hudson, Mary</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boretzki%2C+Michael%22">Boretzki, Michael</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Scollie%2C+Susan%22">Scollie, Susan</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Woods%2C+Whitney%22">Woods, Whitney</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wheeler%2C+Julie%22">Wheeler, Julie</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hudgens%2C+Krystal%22">Hudgens, Krystal</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Neumann%2C+Sara%22">Neumann, Sara</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Audiology%22">International Journal of Audiology</searchLink>. Mar2015, Vol. 54 Issue 3, p170-181. 12p. 2 Color Photographs, 2 Charts, 7 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Analysis+of+variance%22">Analysis of variance</searchLink><br /><searchLink fieldCode="DE" term="%22Hearing+aids%22">Hearing aids</searchLink><br /><searchLink fieldCode="DE" term="%22Hard+of+hearing+children%22">Hard of hearing children</searchLink><br /><searchLink fieldCode="DE" term="%22Randomized+controlled+trials%22">Randomized controlled trials</searchLink><br /><searchLink fieldCode="DE" term="%22Repeated+measures+design%22">Repeated measures design</searchLink><br /><searchLink fieldCode="DE" term="%22Severity+of+illness+index%22">Severity of illness index</searchLink>
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  Data: Objective: To evaluate wideband amplification and non-linear frequency compression (NLFC) as a means to improve speech recognition for children with mild/moderate hearing loss. Design: Randomized within-subject design with repeated measures across test conditions. Study sample: Eleven children with mild to moderate hearing loss were evaluated with: (1) Phonak BTE without NLFC, (2) Phonak BTE with NLFC, and (3) Oticon BTE with wideband response extending to 8000 Hz. Results: Use of NLFC provided better detection and recognition of high-frequency stimuli (e.g. /sh/ and /s/). No difference in performance between conditions was observed for speech recognition when measured with the University of Western Ontario (UWO) plurals test and the UWO distinctive features difference test. Finally, there were no differences between conditions on the BKB-SIN test. Conclusions: Children with mild to moderate hearing loss have good access to high-frequency phonemes presented at fixed levels (e.g. 50 to 60 dBA) with both wideband and NLFC technology. Similarly, sentence recognition in noise was similar with wideband and NLFC. Adaptive test procedures that probe performance at lower input levels showed small but significant improvements in the detection and recognition of the phonemes /s/ and /sh/ with NLFC condition when compared to the NLFC Off and wideband conditions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of International Journal of Audiology is the property of Taylor & Francis Ltd 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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        Value: 10.3109/14992027.2014.943845
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        Type: general
      – SubjectFull: Hearing aids
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              Text: Mar2015
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