What is an Audiogram?
The first step in correcting hearing loss begins with a hearing test. At the end of the test, the audiogram serves as a reference to assess the frequencies concerned and the amplitude of the hearing loss.
To measure hearing, the hearing-aid acoustician transfers the auditory perception thresholds to the audiogram.They are measured for each ear (in decibels) at different audible frequencies (in hertz).
An audiogram records what is known as the hearing threshold for different frequencies – this is the range at which the human ear can just barely perceive a sound.
The results of this hearing test are modeled in the form of a graph.
Creation of an audiogram
The patient is first put on headphones. Then the acoustician begins to play a single tone – starting with a frequency of 1000 Hz, which is usually easily recognized by healthy ears – and amplifies this in steps of 5 dB each until it is heard by the patient. Then continue with further frequencies and mark the hearing threshold in each case.