What is the term used to describe the point where normal ears can hear at every frequency?

The term "Audiometric Zero" is used to describe the reference point indicating the lowest level of sound that can be heard by a normal hearing listener at various frequencies. This concept establishes a baseline for interpreting hearing test results. Essentially, audiometric zero represents the threshold of hearing for normal hearing individuals, which allows clinicians and audiologists to determine the hearing sensitivity of individuals in comparison to this standard.

In the context of hearing assessments, when a person's hearing ability is measured during an audiometry test, the results are often expressed in decibels relative to this audiometric zero. Therefore, knowing this term is critical for understanding audiometric data and diagnosing hearing impairments effectively. Other terms like audiometry, threshold, and interaural attenuation refer to different aspects of hearing evaluation and do not specifically describe the point where normal ears can hear across all frequencies.