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Trade-offs have to be made between improved audibility and the loss of fidelity. Acoustic hearing impairment can cause reduced access to temporal fine structure (TFS), while cochlear implant processing, used to treat profound hearing impairment, has reduced ability to convey TFS, hence forcing greater reliance on modulation cues. Target speech mixed with a competing talker was split into 8\u201322 frequency channels. From each channel, separate low-rate (EmodL, &amp;lt;16\u2009Hz) and high-rate (EmodH, &amp;lt;300\u2009Hz) versions of the envelope modulation were extracted, which resulted in low or high intelligibility, respectively. The EModL modulations were preserved in channel valleys and cross-faded to EModH in channel peaks. The cross-faded signal modulated a tone carrier in each channel. The modulated carriers were summed across channels and presented to hearing aid (HA) and cochlear implant users. Their ability to access high-rate modulation cues and the dynamic range of this access was assessed. Clinically fitted hearing aids resulted in 10% lower intelligibility than simulated high-quality aids. Encouragingly, cochlear implantees were able to extract high-rate information over a dynamic range similar to that for the HA users.<\/jats:p>","DOI":"10.1121\/10.0000673","type":"journal-article","created":{"date-parts":[[2020,2,26]],"date-time":"2020-02-26T15:27:35Z","timestamp":1582730855000},"page":"1284-1301","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":1,"title":["Measuring access to high-modulation-rate envelope speech cues in clinically fitted auditory prostheses"],"prefix":"10.1121","volume":"147","author":[{"given":"Michael A.","family":"Stone","sequence":"first","affiliation":[{"name":"Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester , M13 9PL, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Garreth","family":"Prendergast","sequence":"additional","affiliation":[{"name":"Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester , M13 9PL, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shanelle","family":"Canavan","sequence":"additional","affiliation":[{"name":"Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester , M13 9PL, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2020,2,26]]},"reference":[{"volume-title":"Methods for the Calculation of the Speech Intelligibility Index","year":"1997","author":"ANSI","key":"2023080508382965800_c1"},{"volume-title":"Specification of Hearing Aid Characteristics","year":"2003","author":"ANSI","key":"2023080508382965800_c2"},{"key":"2023080508382965800_c3","doi-asserted-by":"publisher","first-page":"473","DOI":"10.1121\/1.3589440","article-title":"Effects of spectral smearing and temporal fine-structure distortion on the fluctuating-masker benefit for speech at a fixed signal-to-noise ratio","volume":"130","year":"2011","journal-title":"J. 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