Week 7.1 Flashcards Preview

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Flashcards in Week 7.1 Deck (8)
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1
Q

What is a hearing aid manufacturer software?

A

Where the ability to add/delete/change programs occurs. All manufacturers offer different programs for different environments.

2
Q

What is the goal of all programs?

A

To optimize listening in a particular environment

3
Q

What is a noise program?

A
  • generally have directional/cardioid
  • fillers separate noise from fluctuating signal (speech)
  • gain generally not as loud since LF turned down
  • to be effective must face away from noise
4
Q

What is a music program? Who benefits?

A
  • Generally for highly trained musicians
  • Music has greater frequency & intensity range than speech, so extend this in program
  • All advanced features turned off (directional microphones, noise reduction, frequency lowering)
  • Output limiting increased or turned off
  • Want to make HI as linear as possible
5
Q

What is a TV program?

A

Provide more high frequency gain - this is the only difference.

6
Q

Why is TV so difficult for someone with a hearing loss?

A

1) No separation of background noise from speech
2) Distance from user creates echo = distortion
3) Visual cues on TV are limited
4) Pace of speech cannot be altered

7
Q

Name 3 other program options not already listed.

A
Tinnitus program
Wind noise program
FM Program
Telecoil Program
Phone program
8
Q

What are the differences between a high-end and a low-end hearing aid?

A

High end have:

  • More channels (better match HA to HL)
  • More programs
  • Better noise reduction (low end only decrease by 5dB, high by 15dB)
  • Binaural synchrony (compare/exchange info)
  • Extra accessories