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Special Features of Hearing Aids. The first feature is directional microphones. features find on hearing aids that are used mostly in noisy places like bar, restaurant or in a public meeting are known as directional earphones. Their operation is in such a way that they reduce sound from behind so that it does not interfere with noise in front. They are available in some of the styles of hearing aids i.e. BTE, OE, ITE, Half Shell, and ITC styles. Their autonomous nature makes it turn itself on when the sound level in the room goes too high. Another feature they have is that they can follow moving sounds or reduce several different sounds at the same time. You can also check the ones that reduce noise. This function reduces amplification at the frequencies where there is no noise and speech. For instance a fan running in the background it will speech it as much as it will amplify it. Movement of the fan will be detected. It is also designed to transmit both speech and noise at the same time. some hearing aids can manage noise by breaking the frequencies up into smaller pieces. Noise reduction here does not mean the actual noise but just the balance between noise and speech.
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Memory is also one of the features in hearing aids. Memories are just different settings for different situations such as quiet places, noisy places, and music or phone. The two types of memory are a manual memory and electronic memory. Memories are being enabled by the utilization of a push button that allows you to have different settings . We can use the push button to activate the manual memory, and the electronic memory is turned on by the hearing aid itself.Push button turns on manual memory while hearing aid turns on the automatic memory. The work of the hearing aid is to beep when the memory is on to alert you on which memory you are using. Some hearing aids have combination of both manual and automatic memories.
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Another feature is called feedback cancellation. Feedback is the whistling sound that comes back to your ear when you put your hand over it. This feature can take down that whistling sound from coming back to your ear. We also have bands. Bands are features found in the hearing aids that are used in adjusting the volume in the hearing aids. When we have more bands it will also mean more control when your hearing aids are programmed to your ear. Hearing Aids has another feature known as channels. The loud sound is controlled by an element in the hearing aid known as the channel. They are mainly responsible for noise reduction. This means the larger the number of channels the more noise it controls.