Hearing-impaired listeners need a 15 dB UCL-to-threshold gap for audible amplified stimuli

Evidence

It was required that the uncomfortable level (UCL) was at least 15 dB higher than the hearing threshold (HTL), to ensure enough headroom for the hearing-loss compensation used to make stimuli audible. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3076

Categorization

• DEFINE: UCL and HTL defined in context as the usable dynamic-range criterion for recruiting hearing-impaired subjects into an experiment.