Hearing Aid Technology has advanced significantly over the past decade. Today’s in the digital world everything available in a different style with your comfort. So in the same, there is a lot of growth in latest hearing aid technology. In the market, there is a vast range of hearing machine available and each of them has some different strengths and weakness for different people.

1. PRESENTATION ON HEARING AIDS
TECHNOLOGY

2. INTRODUCTION
Hearing Aid Technology is very popular and advanced over
the past decades. The growth of hearing aid technology is
increases day by day. In the market there is wide range of
hearing machine is available and each of them have some
different strengths and weakness for different peoples. In
today’s modern world everything is available in different
manner with our comfort.

4. Digital hearing aid have some advanced features along with
analog hearing aids. Digital hearing aid has the latest
technology which convert sound wave into digital signals
which is useful for analyze whether the sound is noise and
provide a distortion free signal. It is little bit expensive as
compare to analog hearing aid.
DIGITAL HEARING AID

5. Features of digital hearing aid
● It is improvement in programmability.
● Digital hearing is greater in fitting.
● The management of loudness discomfort.
● Control of acoustic feedback
● It is also good in noise reduction.

6. ANALOG HEARING AID
Before the development of digital sound technologies, analog hearing aids were
the only form of hearing aid available. Some analog hearing aids are
programmable, containing a microchip which stores multiple program settings for
various listening environments. These programs can be changed by the user by
pushing a button on the hearing aid.

7. Features of analog hearing aid
● Generally cost less than digital hearing aids.
● Are sometimes more powerful than digital hearing aids.
● Long time hearing aid users sometimes prefer analog over digital.

8. Hearing Aid Technology Advantages
● It provide Digital signal processing which convert sounds entering the
microphone into ‘digitized’ codes and analyze incoming sound.
● Digital noise reduction (DNR) refers to the ability of digital hearing aids to use
to determine whether the signal of sound is a speech like or noise like and
gain adjustments accordingly.
● AGC i.e Automatic gain control basically helps make softer speech sounds
and audible while how much noisy environment or loud sound are amplified.

9. ● Directional microphone system in the hearing aid reduced sensitivity to
sounds arriving from directions behind the user compared to its sensitivity to
sounds arriving from the front.
● Adaptive Feedback Cancellers are designed to manage transitory feedback
(something near to your ear). This doesn’t resolve ongoing feedback, which
might be due to a poorly fitted earmold for a hearing device.
● A channel is a filter that covers a range of frequencies that is analyzed,
processed, and reproduced by the hearing aid in the same manner.

10. ● Telecoil also called induction coil. It’s nothing more than a tiny coil of wire
around a core that will induce an electric current in the coil when it’s in the
presence of a changing magnetic field.
● Listening sound in wind is worst situation for hearing loss people. This is
because wind noise can create turbulence as it moves past the hearing aid
microphone, making it more difficult to hear the sound that you want to
hear.Wind noise reduction improved speech understanding and keep hearing
aids on when it is windy outside.

11. ● Bluetooth compatibility allows you to stay connected to a number of the
wireless devices, including phones, televisions, and tablets more. Bluetooth
hearing aids have the ability to improve the signal to noise ratio and eliminate
feedback from the microphone and it gives you the ability to adjust the volume
of your hearing aids remotely.
● A Digital hearing aid comes in a variety of different style and type based on
hearing loss degree. One popular option is open fit hearing aid that design to
keep the ear canal as open as possible to prevent the occluded.

12. ● Hearing Aid with Sensor is a pretty smart idea. using sensor will allow your
device to know if they should turn on or off, and will apparently make it easier
and more cost-effective to the manufacturer while draining less battery.
● In this digital world everything on your touch, we’ve seen apps take the stage
for a while now. The smart apps will be highly improved, more interactive, and
provide connectivity and independence for the user.

13. THANK YOU