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Guide to Hearing Aids and Their Functions 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. Some analogue hearing aids can detect whether sounds are loud or quiet. What this means is the device is able to recognize loud sounds like traffic sounds that it does not amplify further. 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. 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 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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We have to remember that the center of human hearing is the most powerful signal processor found in our brains. The sound processor in our brains are simply left to guess that sound it hears if the sound input from both ears are not clear. 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. In the same manner, to simply amplify sound without discriminately filtering what our remarkable sound processor found in our brain has been busy from the beginning localizing certain sounds in the environment, discriminating particular sounds or signals, auditorily cuing sounds that has been stored as memory is suddenly distorted, your common and rational perception is totally undermined, and therefore the way to bring them all back to its normal behavior is to immediately correct it through this human made technology that we have today.