Category Archives: *** LESSONS ***

A selection of lessons on hearing aid technology to help you understand the benefits of modern digital hearing aids.

LESSON 4 – Noise reduction in hearing aids

Posted on July 26, 2011 by admin

The holy grail for digital hearing aids is to allow wearers to hear speech more clearly in the presence of background noise. So whilst modern hearing aid manufacturers claim to use noise reduction technology - does it actually work?!  ‘Noise’ simply put is sounds … Continue reading →

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LESSON 3 – What are hearing aid channels?

Posted on August 25, 2010 by admin

(Note: as of April 2013 Siemens introduced their new range of hearing aids called Micon which incorporate 48 processing channels. The jury is out as to the actual benefit received of increasing to 48 channels from the old upper range … Continue reading →

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LESSON 2 – Understanding the Hearing Test

Posted on November 4, 2009 by admin

First, a quick understanding of what ‘sound’ is. Sound is a pressure wave and is the result of molecules impacting upon each other, caused for example by objects hitting each other (such as a hammer onto an anvil) or from objects vibrating … Continue reading →

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Lesson No. 1 – What is a ‘digital’ hearing aid?

Posted on August 13, 2009 by admin

Lesson 1 What is a ‘digital’ hearing aid? Firstly let’s explain what ‘analogue’ is: An analogue signal uses a physical medium to convey information. So for sound, fluctuations in air pressure strike the diaphragm of a microphone which then causes … Continue reading →

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