Hearing-impaired listeners need higher signal-to-noise ratios than normal hearers do

Evidence

One important feature relevant to obtaining good-quality audio listening is the relative levels of the wanted sound and unwanted sound such as local background acoustic noise. In environments such as aircraft cabins where the ambient acoustic noise level is high, it is not easy to obtain good-quality audio. This is particularly the case with the headphones provided to economy-class travelers, which are generally of a low quality that distorts the sound when the volume is turned up sufficiently high to hear the music or film soundtrack. There is also the danger that the overall sound level being presented (wanted signal plus the unwanted background noise) could even cause noise-induced hearing loss (see Section 2.5) depending on the volume of the wanted signal that is set. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2562 (#expands, via linked claim)

Categorization

• XREF: connects to: Hearing-impaired listeners fail to gain temporal resolution in background noise — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1933; Ear trumpets could be matched to specific hearing loss profiles.; Hearing loss makes listener opinions unreliable no matter how experienced (+7 more)

Broader Connections

• High ambient noise forces listeners to raise volume toward hearing-loss levels #expands (0.75) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2562