It is not enough that you use a particular device. You need to evaluate its success in getting things done for you. This is even more important when you are talking about a device like hearing aids. Without proper evaluation, you will not be able to figure out if the device you are using is satisfying your requirement. An audiologist can do the evaluation for you and help you find the right hearing machine. As per a survey report from a leading agency, over 95% people who choose to buy their first hearing aids online prefers to buy the second hearing device after consulting in hearing aid centre.
The evaluation done by audiologists is termed as audiometric evaluation. In this process, the effectiveness or the lack of it is measured by experts in laboratory conditions. The data will give you an idea of how effective the device is for a particular user. A note of caution needs to be sounded here. Laboratory conditions may differ from real-life situations where the hearing device will actually be used. Audiometric evaluation is good for ideal measurements, but if you need data picked up from practical situations, you have to go beyond the lab.
The best form of evaluating the prowess of hearing devices is self-evaluation. The patient or the user does it on their own. They take data as instructed by audiologists about how efficient the device is for them. They can make reports on the satisfaction level of the device. They can also rate on the benefit they are receiving from the device. Users can figure out how the device is holding up for them by using it under different conditions. For example, it can be used to test how well the user can pick up ambient sound or individual voices from a roomful of talking people.
Professional audiologists have yardsticks that they will use to measure data pooled in by hearing aid users. When the stats match normal readings, the user is encouraged to carry on with the device. If the readings are skewed, audiologist go in for additional evaluation using real ear measurement. A tube microphone made of silicon is used to measure the vibrations picked up by the hearing aid on the eardrum. Again, this data is measured against standard figures and that is how you know if your hearing aid is working to expected results..