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Mass-loading the eardrum was hypothesized to reduce high-frequency absorbance, whereas pressurizing the middle ear was hypothesized to reduce low- to mid-frequency absorbance. Discriminant linear analysis classification was performed to evaluate the utility of absorbance in differentiating between conditions. Water on the eardrum reduced absorbance over the 0.7- to 6-kHz frequency range and increased absorbance at frequencies below approximately 0.5\u2009kHz; these changes approximated the pattern of changes reported in both hearing thresholds and stapes motion upon mass-loading the eardrum. Pressurizing the middle ear reduced the absorbance over the 0.125- to 4-kHz frequency range. Several classification models based on the absorbance in two- or three-frequency bands had accuracy exceeding 88%.<\/jats:p>","DOI":"10.1121\/10.0026224","type":"journal-article","created":{"date-parts":[[2024,6,4]],"date-time":"2024-06-04T20:03:52Z","timestamp":1717531432000},"page":"3615-3626","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Differential effects of mass-loading the eardrum and stiffening the middle ear on wideband absorbance"],"prefix":"10.1121","volume":"155","author":[{"given":"James D.","family":"Lewis","sequence":"first","affiliation":[{"name":"Department of Audiology & Speech Pathology, University of Tennessee Health Science Center 1 , Knoxville, Tennessee 37996, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alicia","family":"Rutherford","sequence":"additional","affiliation":[{"name":"Department of Audiology & Speech Pathology, University of Tennessee Health Science Center 1 , Knoxville, Tennessee 37996, USA"},{"name":"Knoxville Veterans Affairs, Audiology 2 , Knoxville, Tennessee 37919, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kathleen E.","family":"Stanford","sequence":"additional","affiliation":[{"name":"Department of Audiology & Speech Pathology, University of Tennessee Health Science Center 1 , Knoxville, Tennessee 37996, USA"},{"name":"Greater Knoxville Ear, Nose, and Throat 3 , Powell, Tennessee 37849, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2024,6,4]]},"reference":[{"key":"2024060414432973800_c1","doi-asserted-by":"publisher","first-page":"708","DOI":"10.1055\/s-0040-1719130","article-title":"Wideband absorbance in ears with retraction pockets and cholesteatomas: A preliminary study","volume":"31","year":"2020","journal-title":"J. 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