The first hearing aids were wired while recent hearing devices are mostly wireless. There is the question of "how hearing aids work?" The point is that hearing aids amplify sounds coming from outside to the device. The very first hearing devices were simple horns or trumpets designed to amplify sounds acoustically. Presently there are electronic hearing devices. There is a huge variety of hearing aids and their mechanisms vary depending on the device. However, we can say that there are three types of circuitry used in digital hearing devices today.
The first one is an analog adjustable hearing devices. These hearing devices are custom-made. First, an audiometrist determines the volume and other specifications necessary for an individual ear and afterwards a laboratory builds the device according to these specifications. In addition, he will make a sound advice on hearing aids. This kind of circuitry introduces the least expensive hearing devices.
The second type of hearing device is analog programmable. Devices like these are programmed with a computer. An audiometrist determines all the necessary specifications and programs the device with a further sound advice on hearing aids. The circuitry of such devices accommodates more than one setting - for your convenience. In some cases the hearing aid is completed with a remote control so the wearer can adjust the settings for a desired listening environment. Analog devices are gradually getting squeezed out by digital hearing aids.
So this brings us to the third kind of hearing devices - digital programmable. Such hearing devices are fully programmable by computer. A wearer can adjust the necessary preferences such as sound quality or response time. Digital hearing aids include a receiver, microphone, battery and a computer chip. Digital hearing aids offer the most flexible solution for people suffering from hearing losses. However, these hearing aids are the most expensive. The advantages of digital hearing aids are as follows: they are easily reprogrammed and a wearer can adjust it to different environments - for quiet places, music listening and choose a desired level of noise reduction.
There are digital hearing aids supplied with directed microphones. It is extremely convenient when you converse with a person in a noisy place. You can filter unwanted noise by directing your hearing microphone to a person you are conversing with. A modern digital hearing aid is a powerful tool that removes your imperfection. Before you use it you should learn sound advice on hearing aids. Experienced audiologists or audiometrists will help you. These experts will carry out the necessary measurements and determine necessary specifications for individual hearing aids.
Unfortunately, there are now many hard-hearing people with mild and severe hearing problems. Digital and analog hearing devices are advertised in a variety of characteristics and prices. However, a good expertise of a hearing-aid professional and an after-sale service are much more important than any other considerations about a hearing device. The point is that a badly fitting device may result in unpleasant sensations and may appear useless. A professional audiologist will make a sound advice on hearing aids so take advantage of it.