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Hearing Aid Microphones

Hearing Aid Microphones

People are often concerned about the steps they can take to prevent the onset of hearing loss. Using hearing aids is an efficient manner of doing so due to their advanced features that enable people to hear more effectively than ever before. Features such as the directional microphone enable hearing aid users to have an enhanced yet natural experience of hearing.

Initial hearing aids used the omnidirectional microphone that used to amplify sound from all the various directions at an equal capacity. This equal enhancement of all the sounds was more effective in quieter environments but impractical to use in louder or outdoor surroundings where various levels of background noise are present. To rectify this problem, the directional microphone fixates more on the sounds that are generated from the front of the microphone. This rectification enables you to focus clearly on the sounds that take place directly in front of the microphone. Additionally, directional microphones block out background noises from the remainder of the environment to enable clearer sound quality and speech recognition.

To maintain the benefits of both omnidirectional and directional microphones, designers of hearing devices tend to include both of them in modern hearing aids for optimal sound clarity. Some hearing aids enable users to use a tiny switch to manually change between omnidirectional and directional microphones, depending on the type of environment they are in. More contemporary models are equipped with the ability to automatically switch between both the microphones as and when required.

An adaptive directional microphone is yet another type of microphone used in hearing aids. This particular microphone enables the hearing aids to undergo variations in terms of the amplification direction by automatically focusing on the direction from which speech signals are emanating. Although this type of microphone is more flexible, it can be confusing in places where more than one speaker is present since the microphone does not have the capacity to choose which speaker to focus on. In the event of multiple speakers, the hearing aid user can switch their hearing aid microphone to the forward mode so that only frontal sound signals are picked up.

Hearing aids with directional microphones need to be used with caution when it comes to children. Children develop language skills mostly through listening to people speaking in their immediate environment thus directional microphones can omit several speakers in the environment. Furthermore, directional microphones can be dangerous for children crossing the road since they tend to block out the sound of traffic thus parents should caution their child to switch their directional microphone off when no longer needed.

Overall, the directional microphone has more benefits than disadvantages which is why it is widely used in modern hearing aids. Used properly, this type of microphone can enable a user to have a richer hearing experience.