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By varying masker frequency it is possible to estimate off-frequency compression. The maskers were 500-Hz-wide bands of noise, and the signal was a brief pure tone. Compression at different levels was estimated using different overall signal levels, or different masker-signal intervals. It was shown that the new AFM technique and the original AFM technique produce consistent results. Considerable compression was observed for maskers well below the signal frequency, suggesting that the assumption of off-frequency linearity used in other techniques may not be valid. Reducing the duration of the first masker from 200 to 20 ms reduced the compression exponent in some cases, suggesting a possible influence of olivocochlear efferent activity.<\/jats:p>","DOI":"10.1121\/1.3455844","type":"journal-article","created":{"date-parts":[[2010,8,9]],"date-time":"2010-08-09T23:59:13Z","timestamp":1281398353000},"page":"771-786","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":24,"title":["On- and off-frequency compression estimated using a new version of the additivity of forward masking technique"],"prefix":"10.1121","volume":"128","author":[{"given":"Christopher J.","family":"Plack","sequence":"first","affiliation":[{"name":"University of Manc Human Communication and Deafness Division, hester, Manchester M13 9PL, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dhany","family":"Arifianto","sequence":"additional","affiliation":[{"name":"Sepuluh Nopember Institute of Technology Department of Engineering Physics, , Surabaya 60111, Indonesia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2010,8,9]]},"reference":[{"key":"2023073021313722300_c1","doi-asserted-by":"publisher","first-page":"2889","DOI":"10.1121\/1.2169918","article-title":"Time course of the human medial olivocochlear reflex","volume":"119","year":"2006","journal-title":"J. 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