How does the speech recognition rate test work?

Hello, speech recognition rate usually refers to the maximum speech recognition rate, which is generally achieved when the sound signal strength is controlled near the most comfortable level. During the test, the output sound level was adjusted to the MCL level, or 30-40dB above the participant's pure tone hearing threshold. It can be played on CD or tape, or the tester can test his or her own pronunciation.

In routine hearing aid fitting, it is recommended to test 25-75 monosyllabic words or two-syllable words. The naked-ear speech recognition test can be performed with headphones or a sound field, and the speech recognition test after wearing hearing aids is generally performed in the sound field. If 5 or more output intensities are used to test above and below the speech recognition threshold, several corresponding recognition rate values can be obtained, and the functional relationship between the two is plotted as a curve, which is the speech audiogram.

The speech test method and process are more complex, the subject needs to listen to the vocabulary material (speech audiometry material) and then repeat the speech of the test vocabulary, the tester records the correctness of the subject's rereading, and then repeats and records the results, the test process requires the tester to concentrate on judging the correctness or error of the subject's repetition, resulting in the error of thinking, and the test process takes a long time, usually the full set of examinations takes 40 minutes or even longer, using different output intensities, Different speech recognition rates can be obtained, and if 5 or more output intensities are used to test above and below the speech recognition threshold, the corresponding recognition rate values can be obtained, and the functional relationship between the two can be traced as a curve, which is the speech audiogram.

When we are in the process of communicating with our families, will there always be a distraction? Does it take the other person to repeat it many times to understand? If this happens, it's likely that your language discrimination has decreased! That's when you need to pay close attention to your hearing.

A hearing test of the pure-tone hearing threshold can reflect our hearing sensitivity to pure tones at each frequency point, which is commonly referred to as the degree of hearing loss. The level of speech recognition ability can directly reflect the state of our hearing function. The degree of hearing loss is not necessarily proportional to the ability to recognize speech!

For example, two people with the same degree of hearing loss may have a big difference in speech recognition ability! In addition, many patients with sensorineural hearing loss will reflect, "I can hear but I can't hear clearly!"

This is also the case.

In general, if the hearing loss lasts for a long time and no compensation measures are taken, the speech recognition ability will gradually decline, and the longer the time, the more the decline will be. Because we all have our own listening memory, if the sounds we hear are outside of our listening memory, such as listening to the dialect of an unfamiliar region or listening to a foreign language, we will be able to hear it, but we will not understand it. The auditory memory we already have is not permanent, it will also be forgotten, and if we do not hear certain sounds for a long time, when we hear them again, it will also cause:

I can hear it, I can't understand it.

Therefore, it is recommended that once you find hearing loss, you should intervene in time and wear appropriate hearing aids, which can reduce the impact of hearing loss on our speech recognition ability, but the current situation of hearing in China is not optimistic, many patients with mild to moderate hearing loss think that their current daily communication is not too affected, and when the hearing is heavier in the future, it is not too late to wear hearing aids to compensate, this idea is very wrong, with the development of time, the degree of hearing loss may not change, However, the ability to recognize speech must be a gradual decline, and when it declines to affect normal communication, it is not a very easy problem to recover, even if you wear a suitable hearing aid, you still can't understand it immediately, and it will be a complicated and long process to regain the lost hearing memory little by little.

Speech recognition ability plays a very important role in our daily communication, so we must pay attention to maintaining the existing speech recognition ability and maintaining the existing listening memory. Once hearing loss is found, it is necessary to compensate in time to minimize the impact of hearing loss on our speech recognition ability, and also improve the wearing effect of hearing aids, the earlier the hearing aid is worn, the better!

Hello! You ask: Is it effective to use hearing aids in cases of low speech recognition? How to say this, hearing patients with a speech discrimination rate of less than 50% are recommended to wear hearing aids.