Listeners suffering from presbycusis (age-related hearing loss) often report difficulties when attempting to understand vocal announcements in public spaces. Current solutions that improve speech intelligibility for hearing-impaired subjects mainly consist of customized solutions, such as hearing aids. This study proposes a more generic strategy, which would enhance speech perception for both normal-hearing and hearing-impaired listeners, i.e. For All. It provides the early stages of such an approach. Digital filters with different degrees of hearing-loss compensation have been designed, getting inspired by the way hearing aids process speech signals. Subjective tests conducted on normal-hearing and presbycusis subjects confirmed that it is possible to improve speech intelligibility for both types of population simultaneously.
Bibliographic reference. Jemaa, A. Ben / Mechergui, N. / Courtois, G. / Mudry, A. / Djaziri-Larbi, S. / Turki, M. / Lissek, H. / Jaidane, M. (2015): "Intelligibility enhancement of vocal announcements for public address systems: a design for all through a presbycusis pre-compensation filter", In INTERSPEECH-2015, 70-74.