hearing threshold level


Also found in: Acronyms.

hearing threshold level

The intensity of sound at which it is first perceived. More formally, it is the sound intensity of a pure tone that elicits a response from a test subject more than 50% of the time.
.
References in periodicals archive ?
There was a significant difference in hearing threshold levels at these frequencies.
After audiometric testing, hearing threshold levels were averaged for the speech frequencies of 1, 2, & 3KHz.
From the audiogram, the mean Hearing Threshold Levels (HTL) of both ears based on different age groups and different service groups were calculated and compared with that of controls.