Threshold of hearing

3-1-200

Alternative term: Threshold of audibility

The minimum r.m.s. sound pressure level of a pure sound which excites the sensation of hearing under specified conditions and at a specified frequency.

Note: 1 The term "Threshold of hearing" is also used to deNote: the level of the least r.m.s. value of the sound pressure of a complex sound which excites the sensation of hearing.

Note: 2 This threshold is usually determined under conditions of negligible ambient noise, but may be determined under other specified conditions.

Reference: C.E.F.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English