Bioacoustics & Ecoacoustics Glossary

phon

https://glossary.acousti.cloud/phon

en

" a psycho-acoustic of equivalent loudness, the need for which arises from the different sensitivity of the ear to different frequencies. The loudness level in phons of a pure tone is the intensity (in dB above reference level) of a pure tone 1000c/s pure tone assessed (as the modal value of judgments by 'normal' observers) as being equally loud." [1]

Reference: [1] Broughton WB. Glossarial Index. In: Acoustic Behavior of Animals. Elsevier; 1963.