Hearing-impaired specific loudness jumps to near-normal values 20 dB above threshold

Evidence

Results displayed in Fig. 16.36 indicate that for the hearing impaired person, specific loudness shows a steep increase just above the threshold and reaches almost normal values some 20 dB above threshold. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1977

Categorization

• QUESTION: This is the quantitative signature of recruitment — worth pairing with a specific amplitude-based explanation of why the growth rate steepens.