Audiometry Tonal

Audiometry is a hearing test that is used to determine the condition and degree of hearing loss. One of the most common methods of audiometry is pure-tone audiometry, which is performed using audiometers that generate pure tones of various frequencies and loudness levels.

The principle of operation of an audiometer is that it delivers tones to the patient's ear and records his response. In this case, the patient must listen to the tones and press a button if he hears a sound. The audiometer can generate tones with frequencies ranging from 200 to 8000 Hz and volume levels ranging from 0 to 120 dB.

The tones used in pure-tone audiometry can be of varying frequencies and intensities. For example, tones can be represented as audio signals that have frequencies of 500, 1000, 2000, and 4000 Hz. Also, tones can have different intensities, for example, from 30 to 90 dB.

When performing pure-tone audiometry, the patient must sit on a chair in front of the audiometer. The audiologist begins applying tones to the patient's ears and records his response to each tone. If the patient hears a tone, he presses a button on the audiometer. If the tone is not heard, the patient does not press the button.

Pure-tone audiometry results can be recorded in graph form. The graph shows the volume levels of the tones heard by the patient and his response to those tones. The graph can also indicate the hearing thresholds for each tone.

Thus, pure-tone audiometry is an important method for studying hearing and allows us to determine its condition and degree of loss. It can be used to diagnose various ear diseases, such as otitis media, sensorineural hearing loss and others.

Audiometry is a type of medical diagnostic that is used to assess hearing status. Its main method is pure-tone audiometry, which allows you to determine the frequency range of sounds that a person can hear. This method is based on generating pure tones of varying pitches and volumes with an audiometer and measuring the patient's response to these sounds. The patient responds to sounds using a special device that measures his response to the sound. The result of audiometry allows you to determine the threshold of sensitivity to sounds of different frequencies and volume levels. The data obtained can be used to diagnose various diseases associated with hearing impairment, such as sensorineural hearing loss, deafness and others.

The pure-tone audiometry method consists of several stages. At the first stage, the patient sits in a chair and listens to white noise, which creates a uniform background. The second stage is the introduction of a disc with recorded notes of various frequencies and volumes. The patient sets the volume level at which each of the recorded tones is heard. The result of this stage is a graphical display of the patient's sensitivity threshold to each tone from maximum to minimum frequency. Demanding, poor hearing can be determined using pure tone audiometry. Then you just need to compare the curves obtained and those that are normal. If they are different, this will indicate the progression of such a disease.

Modern devices make it possible to perform audiometry not only with tonal sounds, but also with speech. This makes it possible to diagnose hearing impairment, including when more complex disorders are detected, and to identify abnormalities even in cases where speech is not impaired in the early stages. In addition, taking into account the individual characteristics of speech perception, an assessment of the child’s hearing characteristics is carried out. It also includes audiological studies of the child’s hearing system.