In overwhelming majority of cases the hearing disorder is caused by the mechanism of audition damage that is an impairment of an internal ear, an acoustical nerve or the acoustical centers of a brain. It is not only difficult to solve the problem, but also the atmosphere of its salvation because the various experts traditionally considered that children with congenital hearing loss can master only a special form of dialogue – sign speech. Fortunately hearing loss can be compensated by hearing aids correctly chosen and individually adjusted by the expert.
Modern level of hearing aid technologies allows to improve the quality of life for approximately 90 % of people with a hearing disorder.
At present hearing aids correspond to the requirements of a child with hearing loss, and from the point of view of its efficiency, attractive appearance (diminutiveness), convenience in using, and price.
Modern hearing aids allow:
• to compensate infringement of sound perception and frequency of sounds;
• to provide the highest legibility of speech (in silence, in noisy conditions, at group conversation);
• to provide naturalness of perception (speech of other people, own voice, music, environment sounds);
• automatically support a comfortable level of loudness;
• automatically adapt for various acoustic situations;
• reliably reproduce danger signals;
• provide a phone conversation without problems;
• provide the absence of return acoustic communication (“whistle”);
• reliably work and consume a minimum of energy.
The majority of the hearing aids developed by the largest world firms-manufacturers during last years, are digital. In a digital hearing aid electric signals are transformed into a binary code and processed with a great speed in the “brain” of device – in a tiny microcircuit (chip). The hearing aids supplied with such chips, are the intellectual systems realizing very difficult algorithms of hearing correction.
The digital device is mostly effective in difficult acoustic conditions when many people talk simultaneously: shouts of schoolboys during breaks, dialogue during a dinner in a dining room, a pupil’s location on a long distance from the teacher.
One more distinctive feature of modern programmed hearing aids is several programs of adjustment. Each program is adjusted for a certain acoustical situation. For example, one program is for perception of speech in silence; another one – for understanding speech in noisy conditions or listening to music, a phone conversation, in a car etc.
Like video camera with an auto focus providing the accurate image of the person, the digital device is focused on human speech. The majority of traditional models of hearing aids amplify all sounds equally which strongly complicates the legibility of speech.
Frequently a hard of hearing child, having received a poor quality device, refuses it because of unpleasant noise and distortions, artificial sounding of own speech etc.
It is necessary to consider, that even the best hearing aid cannot cure hearing loss and deafness, it is not capable to make a miracle, however, it can considerably improve the possibilities of dialogue and social adaptation.
Current technologies provide us with lots of advantages. Among them there are not only things for our comfort but also various appliances such as digital hearing aids which help people to get over phisical limitations. Those who suffer from deafness and need such kind of devices, are invited to check out this affordable hearing aids site – this is the right spot offering much info about hearing aids and how to buy them.
But the technologies do not only give us appliances and tools, they also are the tool for searching for those devices. Say, if one needs phonak hearing aids, it is smart to make use of the Internet network. Google and other search engines, social networks and forums will help compare and select what is needed at the best price on the market. And if you would like to keep track of the latest posts on the subject, subscribe to RSS on this blog.