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The hearing instrument purely depends on the type and severity of a person’s hearing loss. If anyone has a hearing loss in both ears it is highly advisable to use two hearing aids in order to get natural indications to the brain. This will also help the person to understand and detect the sound more easily. Hearing aid accessories are devices that receive sound, make it loud and send it to the ears.
A hearing instrument is an electronic device that has minute parts like amplifier, microphone and a speaker. The main function of these accessories is to receive the sound with the help of the microphone which changes the sound to electrical signals and sends to the amplifier. Wherein the amplifier increases the capacity of the electric signals and sends it to the loud speaker. Finally the process ends with the person receiving the sound without any disturbance.
The amplifier is one of the main components in the hearing device. The purpose of this aid is to amplify the sound or speech and make it more clearly for the person to hear without any inconvenience. Audibility is the crucial part; if the speech is not heard properly then the person cannot understand anything. If by any chance the amount of sound decreases it will reduce the sound of the speaker. High frequency may create some annoyance in receiving the speech. Amplifier has to balance the low or high frequency so that the person can hear with maximum loudness and ease.
The microphone is placed very close to the ear. This aid receives the sound from the amplifier and transmits into the ear with the help of a small tube. This helps to convert the sound into signals. It is available in small and handy models. This is mainly connected to the earpieces by wires.
Battery is mostly made up of zinc since it will give high energy. Normally any type of hearing aid requires a lot of power and energy. That is being compensated with the help of these high quality batteries.
The speaker plays a vital role and this is also known as the receiver in the aid since this reduces the noise and sends the sound received from the amplifier. These three devices are the most essential elements for the clear understanding of speech.
All the three seem to be interlinked with each other and fitted into a small device that has made everything possible for the hearing impaired people to live a normal life like all other friends, colleagues and family members they come in contact with. |
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