In the world of audiology, there is such a “banana”. Although it cannot be eaten and looks a bit abstract, it is very useful.It is the speech banana picture.
The uneatable “banana”
Many hearing impaired patients or relatives are familiar with pure tone audiograms.A pure tone hearing chart can directly reflect the degree and nature of the hearing loss of a hearing impaired patient. It is an important way to judge whether the auditory system is healthy, and it is also the most direct basis for the selection of hearing aids.The pure tone listening chart is generally as shown in the figure below.
Before selecting a hearing aid, a pure-tone hearing threshold test is required. The pure-tone audiogram is generally represented by a block diagram.
The abscissa represents the frequency of the test sound, and the unit is hertz (Hz).From left to right, the pitch is from low to high; the ordinate represents the intensity of the sound, the volume that can be heard, and the unit is decibels (dB).From top to bottom, the sound is from small to loud.
On the audiogram, there is a shadow in the shape of a banana. The range of this shadow is the range of the frequency distribution and intensity distribution of the hearing person’s language. This is the speech banana picture.
Pictures from the Internet
“Banana” is very important to hear well
The speech banana chart is a key indicator to measure whether a person’s auditory communication is good in daily communication.
When matching hearing aids, ifHearing aidThe frequency points of the compensated hearing threshold are all in the banana chart, indicating that the user can hear these speech sounds, which indicates that the hearing aid has a good prognosis effect. http://www.jhhearingaids.com
It is more suitable for the wearer, which is very important for hearing and understanding the language, especially for deaf children, which is very helpful for their language learning.If most of the frequency points are within the range of the banana chart, it indicates that the hearing aid is acceptable and basically meets the needs of the wearer, and there is not much daily communication problem.
