I went through a bunch of conference guidelines as part of linked project below. Most gave very little to NO guidance on presentation accessibility. I don't recall any requiring subtitles, but it's been a while since I went through that data. doi.org/10.6084/m9.f...
Conference presentation accessibilityPresentation given at 2023 European Meeting of International Society for Medical Publication Professionals (ISMPP), 24-25 January 2023, London, England. https://ismpp.memberclicks.net/23-eu-meeting#!/ Search for #ISMPPEurope2023 on Twitter. Version 1, 2023-01-16: Contains: Poster (PDF). Narrated audio / video summary (11 minutes 8 seconds; MP4). Supplemental materials (PD). Version 2, 2023-01-17: Corrected supplemental materials extension, which was supposed to be in PDF format. Changed file names to make them easier to distinguish. Version 3, 2023-01-23: New version of poster (PDF) that is accessible to screen reader apps. Version 4, 2023-02-17: Updated list of authors in Figshre to match presentation; no changes to files. Version 5, 2023-04-24: Added new poster (PDF). This poster was given as an encore presentation at 2023 Annual Meeting of International Society for Medical Publication Professionals (ISMPP), 24-26 April 2023, Washington, DC, USA. https://whova.com/web/0jVaExQIblT0aE@y41IPu5YrLWDdN7IEJ80Qy0FgCIk=/ Search for #ISMPPAnnual2023 on Twitter. The online conference version of the poster includes 7 minute 30 second video summary and summplemental materials. Online poster can be viewed at https://mhmc.reveal-sp.com/poster/view/?id=nGu587zlA.doi.org