Hearing aids amplify sound. Air-conduction hearing aids do this by channeling the amplified sound through an earmould into the ear. Bone-conduction hearing aids convert the amplified sound into vibrations that are transferred across the skull-bone to the cochlea. Modern hearing aids process sound using digital technology. The sounds picked up by the microphone are converted into electrical signals. These signals are then converted into data. The hearing aid is programmed to change the data, or certain bits of the data in a similar way to how a computer processes information. The data is then converted back into sound and sent out through the earmould.
Keep your child's hearing aids in working order with step-by-step instructions from our audiologist in our 'how to' video series.
You can find all our ‘how to’ videos on our YouTube channel.