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Different Hearing Aids and Their Functions The number one problem in amplifying sound to alleviate an impaired hearing rest on the ability of the device to separate those troublesome background noise while simultaneously enhancing critical speech signals necessary for understanding. 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. 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 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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If we look at this subject deeper, we would remember that the brain houses the most powerful signal processor which is at the center of human hearing. And if the sound input from both ears are not fully functioning, the sound processor in the brain is simply lest to guess. In other words, when an endless stream of sound waves from both ears is then converted into electrical energy to be fed to the central processor is marred then it follows that its interpretation will also be incorrect. 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.