“…Young adults have been shown to efficiently implement this strategy to segregate the relevant and irrelevant speakers (e.g., Bronkhorst, 2015 ), relying on efficient spectral (formants) and temporal (F0) processing of the speech signal (e.g., Fant, 1960 ; Lieberman and Blumstein, 1988 ; Carlyon and Shackleton, 1994 ; Fu et al, 2004 ; Oxenham, 2008 ; Xu and Pfingst, 2008 ). Given that spectro-temporal processes are known to degrade with age (e.g., Vongpaisal and Pichora-Fuller, 2007 ; Souza et al, 2011 ; Schvartz-Leyzac and Chatterjee, 2015 ; Chintanpalli et al, 2016 ; Goupell et al, 2017 ; Anderson et al, 2021 ) it may be difficult for older adults to take advantage of differences in F0 and/or formant information for talker segregation. Age-related cognitive decline in executive functions, including attention, inhibition, and working memory (e.g., Mitchell et al, 2000 ; Salthouse, 2000 ; Harada et al, 2013 ), may add to the difficulty in utilizing these acoustic cues for voice discrimination.…”