Human beings receive a great deal of information from their surroundings through the sense of hearing. There is a unit of measurement to quantify the level of auditory intensity of a given information : the decibel.
Thanks to this unit in particular, it is possible to assess important aspects of hearing health, for example, the quality of a patient’s hearing, as well as the level of acoustic contamination or noise that can reach the ears.
An audiometry test measures the ability to perceive the quality of sounds, not only in terms of intensity, but also in terms of tonality. Sound waves stimulate the subject’s ear and this information reaches the brain . decibel
The specialist performs a test of these characteristics in order to specify whether the patient has any hearing impairment. This assessment test is performed on both the left and right ear.
This concept was named in honor of Alexander Graham Bell, who made history as a logopaedist and scientist who drove the development of telecommunications
A sound can be defined by three fundamental characteristics: frequency, intensity and duration.
The sounds of nature are pleasant to human beings, for example, the sound of water in a river, the song of a bird or the breath of the wind that moves the leaves of trees. However, human beings are increasingly exposed to artificial noises which, in this case, can become very uncomfortable. decibel
When the sound level moves below 65dB there is no vulnerability or possibility of suffering any adverse side effects. However, when the sound exceeds 85 dB, it poses a risk to personal health.
For example, it is possible to suffer from tinnitus, a condition in which the patient hears an internal sound that is not produced by an objective external stimulus. It is also possible to have a ruptured eardrum. The greater the intensity and duration of a loud sound, the greater the risk of damage. decibel
There are routines in which the person may be exposed to excessive noise. For example, listening to music with headphones and at full volume. In clubs and concerts, the sound can also exceed the recommended intensity.
Each location has its own rule in terms of noise adjustment. Therefore, failure to comply with the rule may give rise to a complaint. This can happen in a community of neighbors when one annoys the other with constant noise. This noise regulation is also linked to the quality of life itself. For this reason, during the night, acceptable levels are lower than during the day, because at that time the quality of rest is protected through the external conditions they provide. decibel
The World Health Organization explains that it is advisable not to exceed 65 dB.