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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. This means that when choosing a hearing aid for a patient, your audiologist should not only conduct a comparative selection on what would best fit the patient. 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 some analog hearing aids that are able to detect whether a sound is loud or soft. 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 digital hearing aid on the other hand comprise a much more sophisticated means of processing incoming sounds and convert them into clearer and more audible sounds and then releases these at the appropriate sound level into the earso that one can take 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 no longer need to throw out a scrap hearing aid when your worsening hearing loss becomes prominent. 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. 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. 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.