{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T15:11:18Z","timestamp":1789830678319,"version":"4.0.1"},"reference-count":41,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Innovation Fond Denmark","award":["5164 00011B"],"award-info":[{"award-number":["5164 00011B"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Trends in Hearing"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:p>Hearing aids provide nonlinear amplification to improve speech audibility and loudness perception. While more audibility typically increases speech intelligibility at low levels, the same is not true for above-conversational levels, where decreases in intelligibility (\u201crollover\u201d) can occur. In a previous study, we found rollover in speech intelligibility measurements made in quiet for 35 out of 74 test ears with a hearing loss. Furthermore, we found rollover occurrence in quiet to be associated with poorer speech intelligibility in noise as measured with linear amplification. Here, we retested 16 participants with rollover with three amplitude-compression settings. Two were designed to prevent rollover by applying slow- or fast-acting compression with a 5:1 compression ratio around the \u201csweet spot,\u201d that is, the area in an individual performance-intensity function with high intelligibility and listening comfort. The third, reference setting used gains and compression ratios prescribed by the \u201cNational Acoustic Laboratories Non-Linear 1\u201d rule. Speech intelligibility was assessed in quiet and in noise. Pairwise preference judgments were also collected. For speech levels of 70\u2005dB SPL and above, slow-acting sweet-spot compression gave better intelligibility in quiet and noise than the reference setting. Additionally, the participants clearly preferred slow-acting sweet-spot compression over the other settings. At lower levels, the three settings gave comparable speech intelligibility, and the participants preferred the reference setting over both sweet-spot settings. Overall, these results suggest that, for listeners with rollover, slow-acting sweet-spot compression is beneficial at 70\u2005dB SPL and above, while at lower levels clinically established gain targets are more suited.<\/jats:p>","DOI":"10.1177\/23312165231224597","type":"journal-article","created":{"date-parts":[[2024,1,5]],"date-time":"2024-01-05T04:19:31Z","timestamp":1704428371000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Amplitude Compression for Preventing Rollover at Above-Conversational Speech Levels"],"prefix":"10.1177","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7960-1188","authenticated-orcid":false,"given":"Michal","family":"Fereczkowski","sequence":"first","affiliation":[{"name":"Institute of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark"},{"name":"Research Unit for ORL \u2013 Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5239-2339","authenticated-orcid":false,"given":"Raul H.","family":"Sanchez-Lopez","sequence":"additional","affiliation":[{"name":"Interacoustics Research Unit, Kongens Lyngby, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stine","family":"Christiansen","sequence":"additional","affiliation":[{"name":"Institute of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark"},{"name":"Research Unit for ORL \u2013 Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1107-9274","authenticated-orcid":false,"given":"Tobias","family":"Neher","sequence":"additional","affiliation":[{"name":"Institute of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark"},{"name":"Research Unit for ORL \u2013 Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,1,5]]},"reference":[{"key":"bibr1-23312165231224597","volume-title":"Methods for Calculation of the Speech Intelligibility Index","author":"ANSI","year":"1997"},{"key":"bibr2-23312165231224597","doi-asserted-by":"publisher","DOI":"10.2307\/2334029"},{"key":"bibr3-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3109\/14992021003753482"},{"key":"bibr4-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1007\/s10162-018-0669-5"},{"key":"bibr5-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1098\/rsos.201345"},{"key":"bibr6-23312165231224597","volume-title":"Hearing aids","author":"Dillon H.","year":"2012"},{"key":"bibr7-23312165231224597","first-page":"88","volume":"1","author":"Dillon H.","year":"2011","journal-title":"Audiology Research"},{"key":"bibr8-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/1.389540"},{"key":"bibr9-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3109\/01050398909070742"},{"key":"bibr10-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3758\/BRM.41.4.1149"},{"key":"bibr11-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1097\/AUD.0000000000001263"},{"key":"bibr12-23312165231224597","first-page":"1","author":"Fereczkowski M.","journal-title":"Journal of Speech, Language, and Hearing Research 66(6)"},{"key":"bibr13-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/1.1916407"},{"key":"bibr14-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00164.2013"},{"key":"bibr15-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-016-0149-3"},{"issue":"10","key":"bibr16-23312165231224597","first-page":"768","volume":"39","author":"Hansen V.","year":"1991","journal-title":"Journal of the Audio Engineering Society"},{"key":"bibr17-23312165231224597","unstructured":"Hau O., Andersen H. (2012). Hearing aid compression: Effects of speed, ratio and channel bandwidth on perceived sound quality.\n                      Audiology Online\n                      . https:\/\/www.audiologyonline.com\/articles\/hearing-aid-compression-effects-speed-770"},{"key":"bibr18-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3109\/14992027.2010.506889"},{"key":"bibr19-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1044\/1092-4388(2005\/045)"},{"key":"bibr20-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1044\/jshr.1004.659"},{"key":"bibr21-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1177\/000348947408300301"},{"key":"bibr22-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3766\/jaaa.18.1.3"},{"key":"bibr23-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1177\/2331216518800870"},{"key":"bibr24-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/10.0014950"},{"key":"bibr25-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3389\/fnins.2014.00348"},{"key":"bibr26-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1177\/2331216516640486"},{"key":"bibr27-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3766\/jaaa.17.9.2"},{"key":"bibr28-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3109\/14992027.2010.524254"},{"key":"bibr29-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/1.4835935"},{"key":"bibr30-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1177\/2331216518807400"},{"key":"bibr31-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1097\/00003446-200208000-00003"},{"key":"bibr32-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1016\/j.heares.2020.107982"},{"key":"bibr33-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1177\/23312165211024482"},{"issue":"4","key":"bibr34-23312165231224597","first-page":"473","volume":"37","author":"Souza P. E.","year":"2000","journal-title":"Journal of Rehabilitation Research and Development"},{"key":"bibr35-23312165231224597","unstructured":"Strelcyk O. (2021).\n                      Compensating hidden hearing losses by attenuating high sound pressure levels\n                      (US Patent No. US 11,490,216 B2). https:\/\/patentimages.storage.googleapis.com\/10\/c1\/df\/15f95f2bbec4b8\/US11490216.pdf"},{"key":"bibr36-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1044\/jshr.2803.455"},{"key":"bibr37-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/1.426848"},{"key":"bibr38-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1097\/00003446-199604000-00008"},{"key":"bibr39-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1121\/1.2017738"},{"key":"bibr40-23312165231224597","doi-asserted-by":"publisher","DOI":"10.3758\/BF03195547"},{"key":"bibr41-23312165231224597","doi-asserted-by":"publisher","DOI":"10.1109\/CNE.2007.369714"}],"container-title":["Trends in Hearing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/23312165231224597","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/23312165231224597","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/23312165231224597","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:48:40Z","timestamp":1777596520000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/23312165231224597"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,1]]},"references-count":41,"alternative-id":["10.1177\/23312165231224597"],"URL":"https:\/\/doi.org\/10.1177\/23312165231224597","relation":{},"ISSN":["2331-2165","2331-2165"],"issn-type":[{"value":"2331-2165","type":"print"},{"value":"2331-2165","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,1]]},"article-number":"23312165231224597"}}