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Am. 138, 2692\u20132706] applies both frequency shaping and dynamic range compression under an equal-power constraint, where the processing is adaptively controlled by short-term estimates of the speech intelligibility index. Previous evaluations of the algorithm have focused on normal-hearing listeners. In this study, the algorithm was extended with an adaptive gain stage under an equal-peak-power constraint, and evaluated with eleven normal-hearing and ten mildly to moderately hearing-impaired listeners. For normal-hearing listeners, average improvements in speech reception thresholds of about 4 and 8\u2009dB compared to the unprocessed reference condition were measured for the original algorithm and its extension, respectively. For hearing-impaired listeners, the average improvements were about 2 and 6\u2009dB, indicating that the relative improvement due to the proposed adaptive gain stage was larger for these listeners than the benefit of the original processing stages.<\/jats:p>","DOI":"10.1121\/1.4979591","type":"journal-article","created":{"date-parts":[[2017,4,10]],"date-time":"2017-04-10T14:29:35Z","timestamp":1491834575000},"page":"2526-2537","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":2,"title":["Extension and evaluation of a near-end listening enhancement algorithm for listeners with normal and impaired hearing"],"prefix":"10.1121","volume":"141","author":[{"given":"Jan","family":"Rennies","sequence":"first","affiliation":[{"name":"Fraunhofer Institute for Digital Media Technology IDMT and Cluster of Excellence Hearing4All Project Group Hearing, Speech and Audio Technology, , D-26129 Oldenburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jakob","family":"Drefs","sequence":"additional","affiliation":[{"name":"Fraunhofer Institute for Digital Media Technology IDMT and Cluster of Excellence Hearing4All Project Group Hearing, Speech and Audio Technology, , D-26129 Oldenburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"H\u00fclsmeier","sequence":"additional","affiliation":[{"name":"Fraunhofer Institute for Digital Media Technology IDMT and Cluster of Excellence Hearing4All Project Group Hearing, Speech and Audio Technology, , D-26129 Oldenburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henning","family":"Schepker","sequence":"additional","affiliation":[{"name":"University of Oldenburg Signal Processing Group, Department of Medical Physics and Acoustics and Cluster of Excellence Hearing4All, , D-26111 Oldenburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon","family":"Doclo","sequence":"additional","affiliation":[{"name":"University of Oldenburg Signal Processing Group, Department of Medical Physics and Acoustics and Cluster of Excellence Hearing4All, , D-26111 Oldenburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2017,4,10]]},"reference":[{"key":"2023080810040505400_c1","volume-title":"Methods for Calculation of the Speech Intelligibility Index","author":"ANSI","year":"1997"},{"issue":"7","key":"2023080810040505400_c2","doi-asserted-by":"publisher","first-page":"1775","DOI":"10.1109\/TASL.2010.2052165","article-title":"Using steady-state suppression to improve speech intelligibility in reverberant environments for elderly listeners","volume":"18","year":"2010","journal-title":"IEEE Trans. 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