Tuesday, November 30, 2010

A classification of hearing assist devices

Hearing assistive devices (HAD) are available in a wide variety as hearing complications are many and differ between individuals. Today, one can get a hearing aid that perfectly suit his/her requirements, all because of the technological development. While advanced features are getting added size of the device is shrinking gradually, so performance and comfort are assured. As different people experience different hearing loss issue it is vital to choose the HAD that can provide optimal solution. The device should be picked based on the level of hearing loss, and only a specialist can recommend the right unit.

Hearing devices are categorized into two, analogue and digital. An analog HAD works similar to a microphone and a loudspeaker, it integrates a microphone, transistors, and an earphone. First, the microphone picks up sound which is then converted into small electrical signals. The transistors amplify the signals amplified by transistors and fed to the ear phone that lies close to the ear drum, hence the user can hear the sound. On the other hand, in digital hearing aid the signal is taken from the microphone, which is converted into bits via the integrate tiny computer chip. This way sound is processed very precisely, which is not feasible with the former type.

When compared to analog devices, digital version offer great advantages, it amplifies sound as per users’ need. The microchip enables users to tune the device according to their requirement, and it automatically adjusts to suit the environment. Though hearing assist devices are in use for decades now, digital hearing aid has brought in a revolution in the field. Each day new technology is evolving in hearing aid and so do the terminology as well, to name a few are hearing amplifiers, digital aids, and much more.

For those on budget shopping analogue hearing aid is the right pick, and due to the technological advancement now the analogue devices also come with the programming option in order to amplify sound like in digital units, but quality of sound is better in the latter.

Generally, hearing aids are classified into three types based on their function and usage, In the canal (ITC), In the ear (ITE), and behind the ear (BTE) hearing devices. When you come across a situation that you need the assistance of a hearing aid to live independently, it is better to seek the assistance of a hearing aid specialist who can tell you which is the suitable HAD for your hearing issue. You can buy 675 hearing aid battery from Ojmedical.

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