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Hearing Aid Research Paper

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What is hearing aid? It is a small electronic device that comes with different styles and sizes in order to fit comfortably to your ear. It is usually placed in or behind your ear. This hearing aid is specialized for person with hearing loss as it amplifies the sound waves to enable a person to listen, communicate, and participate more efficiently in daily activities. There are three main parts of hearing aid which is the microphone, amplifier and speaker. The microphone functioning as the receiver where it collects different sounds from the environment and convert it to electrical signals. The amplifier is also known as the processor whereby it receives electrical signals and increases the power of signals. The speaker functioning …show more content…

The third equation is F=v/2L Where F is frequency; v is speed of sound; L is the length of flared tube. This equation is quite similar to the first equation but this equation is use in find out the frequency at which a flare would begin to enhance the amplitude of the sound. This is because the flared tube is a tube that has two opened section and it is not same with the ear canal that has one opened section and one closed section. For example, assume that the flared tube has a length of 75mm, sub the length of the flared tube which is 75mm into the equation, F=343/(2(0.075)) =2286Hz
Therefore, we can determine that the frequency at which a flare would begin to enhance the amplitude of the sound is 2286Hz.
The last equation is amplification factor =10log ((πr^2 of wider portion)/(πr^2 of narrower portion)). This equation helps in calculate the maximum increase in amplitude above the frequency. For example, if the internal diameter doubles, such as with the 4 mm Libby horn where the inner diameter increases from 2 mm to 4 …show more content…

Here are three of the most common ones out there namely the stethoscope hearing aid, the spectacle hearing aid and the extended-wear hearing aid. Doctors who suffer from hearing loss will find using a stethoscope a massive challenge. That’s why the stethoscope hearing aid was invented to make their lives easier. This device was created in such a way that it’s so simple to use. The interface is easy to attach and the device is small enough that one can carry it around in his or her pocket anytime or anywhere. Apart from that, the next application of the hearing aid would be the spectacle hearing aid. This device is indeed a remarkable creation. It is designed solely for those who wear glasses as well as suffer from hearing loss. Instead of having to wear a hearing aid and a pair of glasses all the time, this devise makes everything easier by just having both in one device. The hearing aid will be attached to the glasses. In a way, it saves an individual’s money so they don’t have to buy two separate

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