Healthy hearing detects 1 to 2 dB level changes at 60 dB

Evidence

To determine just noticable level differences, pairs of 1 kHz tones are presented. The first tone is the anchor sound and has a level of 60 dB. The second tones have levels of 60.2, 60.5, 61, 62 and 65 dB. Each pair is played twice. Normally you should be able to hear level differences of 1 to 2 dB. If you can not hear the difference (5 dB) in the last pair, please consult imediately your ENT doctor. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 3363

Categorization

• CANDY: A quick hearing self-test anyone can run in a few minutes with a tone generator.