What does the term "threshold" refer to in an audiogram?

The term "threshold" in an audiogram specifically refers to the softest level at which sound can be detected by an individual. This threshold is measured in decibels (dB), and each point plotted on the audiogram reflects the minimum intensity of sound a person can hear at different frequencies. Understanding this concept is crucial as it helps audiologists and hearing care professionals determine the degree of hearing loss and the specific frequencies where this loss occurs. Recognizing the threshold allows for appropriate diagnosis and effective treatment planning, such as recommending hearing aids or other interventions to improve hearing capability.