Features of A Hearing Aid
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. Directional microphones are available 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. They are also able to support moving sounds or reduce several different sounds at the same time.
You can also check the ones that reduce noise. Noise reduction allows the hearing aid to reduce the amplification in the frequencies. 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 has the ability to relay both the 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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Another important feature is known as memory. Different settings for various conditions such as quiet places, noisy places, and music or telephone are known as memory. The memories come into forms thus automatic and manual. These memories are being activated by the use 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. When the memory is on ,the hearing aids beeps to alert on the memory you are using. Not all of them, but some hearing aids have mix of both manual and automatic memories.
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Another feature is called feedback cancellation. This is the whistling sound that comes back to your ear when you put your hand over it is known as feedback . It is designed in such a way that it prevents 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 your hearing aid is programmed to your ear it means more bands will have more volume control.The more the bands the more the volume control when the hearing aid is programmed to your ear.
Hearing Aids has another feature known as channels. Channels are used to adjust the part of the hearing aid that keeps the sound from getting too loud. They are mainly responsible for noise reduction. This means the larger the number of channels the more noise it controls.