You might have seen people with hearing deficiency using hearing aid but have you ever wondered how does it work? The hearing aid is a small electronic device that makes sound waves better for the people with the hearing deficiency. Since 1900, most hearing aid manufacturers switched from analogue to digital hearing aids.
Digital listening machine works the same way as the analogue one. Whether you buy hearing aids online or not, it would be tough to get an analogue device. Either of the machines have a microphone, microchip, amplifier, receiver, and battery supply. The microphone of the digital machine takes the sound of the speaker, which gets analysed by the microchip. The signal is processed in binary form (0-1) by the chip for the device to amplify the strength of the signal, which is processed in a more sophisticated way by providing the right wave-length for the listener according to the environment. The receiver then receives the signal and transfer it back to the sound for the listener.
The sounds are transmitted by the speaker into the earlobe through a thin vessel, connecting the microphone for the person to be fully active in a conversation. The digital hearing aid has a special feature that it can amplify the frequency of the sound as per the surrounding of the person. It effectively figure out where you are for example, concert hall, movie hall, garden, etc and adjusts the volume of the sound-wave as per it.
While there are different types of machine for the patients, like invisible, behind the ear, in ear, bluetooth hearing aid,etc., the hearing machine for old person or a newborn child is the same.