|
Different
Levels of Technology
The
inside mechanisms of hearing aids vary among devices, even if they are the
same style. Three types of circuitry, or electronics, are used:
- Conventional
Technology - This type of circuitry is the least expensive and least
flexible. The type of aid generally makes all sounds louder and the
patient uses a volume control wheel to adjust the volume in different
situations.
- Digitally
Programmable Technology - This circuitry allows for a more flexible
hearing aid. More volume can be given in the low pitches or high pitches
as needed. Limited automatic volume control is available. It is programmed
through the computer, but still an analog processor.
- Fully
Digital Technology - A digital signal processing chip samples sounds
and coverts the sounds to numbers. The numbers are sent through formulas
and the sound is shaped to best amplify the pitches of your hearing
loss. Digital circuitry provides the most flexibility for the audiologist
to make adjustments for the hearing aid to fit your specific hearing
loss. Digital circuitry is typically the most expensive.
What
are the Benefits of Programmable Hearing Aids?
Many
programmable hearing aids have capabilities that basic analog hearing aids
do not. These capabilities result in more flexibility for hearing-aid users
and a more precise fit for their needs. The audiologist will be happy to discuss
this further with you during a Hearing Aid Consultation.
Although
no hearing aid can eliminate background noise, especially when the "noise"
is competing speech, programmable hearing aids have been shown to improve
speech understanding and ease of listening for many users.
More on digital
hearing aids
|