Hearing Aid features
Hearing Aid Features
The main components of a hearing aid are the microphone, digital signal processing (DSP) chip and receiver. The microphone picks up the acoustic sound around you and sends it to the signal processing chip where the sound is analysed and converted to a digital signal. Once the sound has been analysed it then passes through different frequency channels in the hearing aid. It is here that sounds are filtered and for example, speech is separated from noise. At the end of the processing, the digital sound is converted back to an acoustic signal via the receiver, resulting in the correct level of amplification passing into your ear. This is all based on your hearing prescription which is calculated by using your audiogram.
Hearing aid features can vary between different hearing aid types. One hearing aid feature is the positioning of microphones and receivers and the power of the DSP chip. For example, NHS behind the ear hearing (BTE) aids have the microphone and receiver sitting behind the ear, in the hearing aid, whilst receiver in the canal (RIC) hearing aids have the microphone in the hearing aid behind the ear and the receiver connected inside your ear canal, making RIC hearing aids a smaller device. The different levels of processing available in the DSP chip will affect the cost of the hearing aid.
Did you know that people take on average TEN years before taking action on their hearing loss? Let PinnaClear help you through your hearing aid journey.
You may be familiar with the whistling sound that is often associated with hearing aids, particularly the older analogue hearing aids. This whistling sound is also known as feedback and feedback cancellation is the ability of the hearing aid to counteract this feedback. Feedback usually occurs when sound leaks out of the ear, this can happen with an ill-fitting earmould or if you have ear wax. All digital hearing aids have their own method of dealing with feedback and this can be adjusted by the audiologist.
If you feel your hearing aids are whistling because of ear wax, we can provide professional ear wax removal by microsuction.