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For broadband stimuli, this can lead to neural responses that are out-of-phase, decreasing the amplitude of farfield neural response measurements. In the present study, cochlear traveling-wave speed and effects of dispersion on farfield auditory brainstem responses (ABRs) were investigated by first deriving narrowband ABRs in bottlenose dolphins and California sea lions using the high-pass subtractive masking technique. Derived-band ABRs were then temporally aligned and summed to obtain the \u201cstacked ABR\u201d as a means of compensating for the effects of cochlear dispersion. For derived-band responses between 8 and 32\u2009kHz, cochlear traveling-wave speeds were similar for sea lions and dolphins [\u223c2\u20138 octaves (oct)\/ms for dolphins; \u223c3.5\u201311 oct\/ms for sea lions]; above 32\u2009kHz, traveling-wave speed for dolphins increased up to \u223c30 oct\/ms. Stacked ABRs were larger than unmasked, broadband ABRs in both species. The amplitude enhancement was smaller in dolphins than in sea lions, and enhancement in both species appears to be less than reported in humans. Results suggest that compensating for cochlear dispersion will provide greater benefit for ABR measurements in species with better low-frequency hearing.<\/jats:p>","DOI":"10.1121\/10.0010389","type":"journal-article","created":{"date-parts":[[2022,5,6]],"date-time":"2022-05-06T11:32:08Z","timestamp":1651836728000},"page":"3070-3082","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":2,"title":["Output compensation of auditory brainstem responses in dolphins and sea lions"],"prefix":"10.1121","volume":"151","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0969-8033","authenticated-orcid":false,"given":"James J.","family":"Finneran","sequence":"first","affiliation":[{"name":"United States Navy Marine Mammal Program, Naval Information Warfare Center Pacific Code 56710 1 , 53560 Hull Street, San Diego, California 92152, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jason","family":"Mulsow","sequence":"additional","affiliation":[{"name":"National Marine Mammal Foundation 2 , 2240 Shelter Island Drive #200, San Diego, California 92106, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3795-2083","authenticated-orcid":false,"given":"Madelyn G.","family":"Strahan","sequence":"additional","affiliation":[{"name":"National Marine Mammal Foundation 2 , 2240 Shelter Island Drive #200, San Diego, California 92106, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0960-8528","authenticated-orcid":false,"given":"Dorian S.","family":"Houser","sequence":"additional","affiliation":[{"name":"National Marine Mammal Foundation 2 , 2240 Shelter Island Drive #200, San Diego, California 92106, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert F.","family":"Burkard","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Science, University at Buffalo 3 , 626 Kimball Tower, Buffalo, New York 14214, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2022,5,6]]},"reference":[{"key":"2023081003094580000_c1","doi-asserted-by":"publisher","first-page":"1585","DOI":"10.1121\/1.382884","article-title":"Digital equalization of underwater transducers for the projection of broadband acoustic signals","volume":"65","year":"1979","journal-title":"J. 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