technology for hearing aid

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PRESENTATION ON HEARING AIDS TECHNOLOGY
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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 todays modern world everything is
  available in different manner with our comfort.

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DIGITAL HEARING AID

• 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.

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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.

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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.

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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.

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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.

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• 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 doesnt 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.

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• Telecoil also called induction coil. Its nothing
  more than a tiny coil of wire around a core that
  will induce an electric current in the coil when
  its 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.

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• 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.

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• 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,
  weve 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.

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THANK YOU