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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. In other words, it is not just enough to have your audiologist conduct a comparative hearing aid selection where the patient would pick up the one that fits them best. The audiologist should primarily choose the best type of technology used to amplify speech signals and block out unnecessary background noise that hinders a person from hearing well. There are analog hearing aids that can detect loud or soft sounds. What this means is the device is able to recognize loud sounds like traffic sounds that it does not amplify further. This is the automatic gain feature of the device. On the other hand, the digital hearing aid has a more sophisticated means of processing incoming sounds and converts them into clearer and more audible sounds and these sounds are released at the right sound level into the ears of the patient so that he can receive them comfortably. This smart technology will enable the audiologist to give a more precise prescription when it comes to your degree of hearing loss, personal lifestyle, and the cosmetic or appearance needs. With this, your audiologist can make your hearing more normal and look normal than when you use the traditional analog hearing aids.
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These digital hearing aids are great simply because they are digital. 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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We have to remember that the center of human hearing is the most powerful signal processor found in our brains. And if the sound input from both ears are not fully functioning, the sound processor in the brain is simply lest to guess. When the central processor receives electric energy converted from sound coming from both ears, it is able to interpret the sound, but when this information is marred then the interpretation also becomes incorrect. In the same way, if you just amplify sound without filtering out what our central processor in the brain has been doing to sounds in the environment, discriminating particular sounds of signals, cuing sounds that has been stored as memory, then there will be a distorted processing, and your common and rational perception is affected, and the only way to bring it all back to normal behavior is to correct it immediately through this human made technology which is the hearing aid.