The sound when checking should be somewhat unpleasant, but not harmful when using regular headphones.
About hearing loss assessment
The assessment of the state of hearing is carried out according to the WHO standard: only the speech range is taken into account, from 250Hz to 4000Hz max to detect hearing loss.
Hearing test available for children. It is worth choosing a children's hearing test if the child is somewhere under 6 years old. The ability to quickly check the minimum of the necessary points for a full understanding of the situation with hearing. Often there is a chance to check from 3-4 years old at home using ordinary headphones.
In fact, what matters is how a person hears in the entire audible range from 20Hz to 20,000Hz (20K).
Hearing impairment, bad hearing is not only a reason for hearing loss, but also the cause of tinnitus (noise, squeak, ringing in the ears), autophony, hyperacusis, problems with the vestibular apparatus and more.
This test was created in order to not only test your hearing abilities. And, first of all, to track objective progress with hearing. As a general rule, home hearing measurements are no less accurate than those taken by a doctor. You can get an audiogram for free.
As a rule, when using a phone and really any headphones (even wireless ones), you can accurately find out the state of hearing from 125Hz to 12000Hz. When using high-quality headphones, you can test your hearing from 41Hz to 16000Hz, or even 20000Hz. The maximum test volume is approximately 90dB (0dB is taken to be 20µPa).
During an illness or with a common cold, it is expected that hearing will naturally decrease to 10-15dB at the moment, especially at high frequencies
Hearing test can be done with speakers: then the results are more likely to be bone conduction. It usually doesn't make sense to check through the phone's speaker. Available to check separately the left and right ears, binaural hearing.
Masking - noise in the opposite ear when checking - should only be used when there is a clear difference between the ears, for the worst ear. The masking is adaptive and is actually done with white noise. Erroneous use - does not lead to an underestimation of the measurement results.Improve your hearing, get objective improvement