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Understanding Hearing Aids Devices that are made to amplify sound to alleviate impaired hearing need to be able to separate background noise from speech signals that are 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 important thing to identify is the type of technology used to amplify speech signals and control unnecessary loud sounds that would hinder the person from hearing properly. 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”. 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. Thus, when an audiologist makes a prescription, it is more precise, and able to target your level of hearing loss, personal lifestyle, and appearance factor. With digital hearing aids, you can hear normal and look normal, unlike when you wear 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. Reprogramming that same hearing aid by simply interfacing your device to the computer in the office of your hearing aid professional can easily be done and spare you from buying 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. 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 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.