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HEARING AID, IS IT REALLY SO??? (1 or 2? (Binaural (Advantages (Better…

- - - - Limitations of HA characteristics
        
        Amplifying high frequencies sounds
        
        Distortion
        
        Noise reduction
      - Physiological factor
        
        such as
        
        Damage to auditory nerve
        
        Auditory processing difficulties
        
        Damage to hair cells
        
        that will affect
        
        Frequency resolution
        
        Decrease dynamic range
        
        Temporal resolution
- - - - because
        
        Not programmed correctly
    - - because
        
        Fitted well
        
        Filter sounds properly
        
        Programmed correctly
- - - - Better sound localization
      - Reduce listening effort
      - Improve sound quality
      - Binaural loudness summation
      - Increased speech intelligibility, binaural squelch and binaural redundancy
      - Tinnitus suppression
    - - Cost
      - Maintenance issues
      - Binaural interference
  - - - Unilateral HL
        
        may helps in
        
        Sound localization
      - Cost & Cosmetics
      - Binaural interference
      - Easier to cope with 1 HA for elderly
    - - Difficulty in sound localisation
      - late intervention
        
        bilateral interference
- - - - troubleshooting
      - sent for service
    - - turn on noise reduction feature
      - reduce LF gain
    - - Decrease HF gain
      - Reduced vent size
- - - - because
        
        Need further adjustment
        
        in order for
        
        Optimum ampification
        
        by
        
        Verification
        
        Validation
        
        Meet pt's hearing needs
- - - - because of
        
        lack of awareness about HL and HA
    - - virtually invisible
      - boost self-confidence
- - - - Hearing is a sense
      - Listening is a skill
        
        which allowing brain to
        
        Develop receptive & expressive language
        
        Localization
        
        Apply meaning to sound
        
        Slow/prevent cognitive decline
        
        Organize