Hearing loss degrades prosodic information because listeners must rely on auditory-only channels

Evidence

Everyday communication settings, however, may frequently deprive the listener of visual information, (e.g., during a telephone conversation) so that listeners have to rely on auditory information only. As hearing loss impairs the perception of auditory information perception of prosodic information may also suffer. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1352