Buying a hearing aid

Prior to you buying a hearing aid, ask your audiologist these questions:
· Which features would be most valuable to me?
· What is the overall price of the hearing aid? Do the benefits of the newest technological advances outweigh the greater prices?
· What is the length of the warranty? Is it possible to extend it? Does the guarantee include upcoming upkeep and repairs?
· Is there a test period to try out the hearing aids? (Almost all manufacturers allow for 30 - 60-days trial period in which hearing aids could be brought back for a refund.) What fees will be non-refundable if the hearing aid is returned after the test period?

· Can the audiologist provide adjustments and supply servicing and small repairs? Will lender aids be supplied while repairs are called for?
· What education does the audiologist give?

New kinds of hearing aids

Although they function differently from hearing aids worn externally, implantable hearing aid design helps to increase the transmitting of audio vibrations moving into the inner ear. Middle ear implants (MEI) are small devices attached to bones in the middle ear. Instead of amplifying the sound moving to the eardrum, the MEI moves the bones directly. Both of these techniques deliver the same outcome of strengthening audio vibrations going into the inner ear in order for them to be perceived by individuals suffering from sensorineural hearing loss.

Bone-anchored hearing aids (BAHA) are small devices that attach to bone located behind the ear. Theses devices transmit sound vibrations straight into the inner ear via the skull, without going in to the middle ear. Generally BAHAs are used by persons with middle ear troubles or hearing loss in one ear. Since a surgical procedure is needed to implant either one of these devices, a lot of hearing specialists are of the opinion that the benefits might not be enough to outweigh the risks.

Research currently underway on hearing aids

Techniques are being considered by researchers to apply recent signal processing schemes to hearing aid design. Signal processing constitutes the technique used to alter natural sound waves to amplified sounds best matching the remaining hearing of a person wearing a hearing aid. NIDCD funded research is also examining how to make hearing aids heighten language signals to help to improve understanding.

Additionally, researchers are looking into the usage of computer assisted engineering in designing and manufacturing more effective hearing aids. Research workers are also looking for methods to improve audio transmitting to cut down on feedback, noise disturbance and the blockage effect. Further studies concentrate on the most beneficial formulas to choose and fit out hearing aids for children and additional groups of people whose auditory ability is difficult to examine.

Some other promising research centres on using lessons acquired from animal examples to aim for improved microphones to be used in hearing aids. NIDCD backed scientists are analysing the midget fly Ormia ochracea since they have an ear structure that lets the fly ascertain the origin sounds very easily. The fly has an ear structure that is being used by scientists as a framework for designing tiny directional microphones for use in hearing aids. The microphones exaggerate the sound originating from a specific focus (commonly the direction an individual is facing), without the sounds that come from a different direction. Directional microphones hold extraordinary promise in making it far easier to hear an individual conversation, even whilst enclosed by other voices and noises.