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Understanding Hearing Aids The main purpose of devices that are used so that sound is amplified to alleviate impaired hearing is to separate background noise from critical speech signals that are necessary for the person to understand what is being said. What this means is that it is not enough for audiologists simply to choose from among the many hearing aids what would best fit his patient. What is more important is what type of technology is used to amplify speech signal and control those unnecessary loud sounds that can choke one hearing tolerance. There are analog hearing aids that can detect loud or soft sounds. This means that they are able to recognize that loud sound, such as traffic, which does not need further amplification. This feature is known as “automatic gain control”. The other types of hearing aids are the digital ones and this has a more sophisticated means of processing incoming sounds and converts hem into clearer and more audible sounds before it releases it to the patient’s hearing at the appropriate sound level which is comfortable to him. Because of this smart technology, a more precise prescription is possible in reference to your degree of hearing loss, personal lifestyle and the cosmetic or appearance needs. With digital hearing aids, you can hear normal and look normal, unlike when you wear the traditional analog hearing aids.
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And since they are digital, then that alone makes it a great hearing aid. This means that you don’t near to throw it our if your hearing problem worsens. This digital hearing aid can actually be reprogrammed by your hearing aid professional so that you don’t need to buy a new unit.
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To take this hearing factor deeper, it must be remembered that at the center of human hearing is the most powerful signal processor found in our brain. And if the sound input from both ears are not fully functioning, the sound processor in the brain is simply lest to guess. This means that when the stream of sound waves entering both ears is converted into electrical energy to be fed to the brain is marred, then it will also have an incorrect interpretation. This means that if we simple amplify sounds without filtering it the way the brain filters it out, localizing certain sounds in the environment, discriminating particular sounds or signals, auditory cuing sounds that have been stored as memory, if there is no filtering of sounds of this nature, then everything will be distorted, the brain cannot process it properly and your common and rational perception is totally undermined, and the only way to bring it back to normal is with the help of human made technology what we are using today.