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Hearing Aid Directionality with Binaural Processing

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1.  How is the term binaural processing usually used in relation to hearing aid technology?
  1. It refers to environmental analysis by two hearing aids
  2. It refers to directional processing in hearing aids
  3. It refers to the exchange of information between two hearing aids that are bilaterally fit to enhance signal processing
  4. It refers to the ability of hearing aids to decide what the wearer needs to hear
2.  Why might binaural processing as defined in question 1 not always be advantageous?
  1. The signal of interest in a listening situation might change or move
  2. Real-life listening situations are usually static
  3. People only want to hear what is in front of them
  4. A and B
3.  What is a directional deficit?
  1. When the microphones are wired backwards
  2. When directional processing is not activated
  3. When there is no directional benefit
  4. When directional processing suppresses a signal of interest that occurs off-axis
4.  What listening strategies do we use depending on the situation and our listening goals?
  1. A better ear strategy and an awareness strategy
  2. A better ear strategy and a binaural strategy
  3. An attention strategy and a filtering strategy
  4. None of the above
5.  Complete the following sentence: With Binaural Directionality II
  1. listeners get the highest improvement in SNR available
  2. the brain can make use of both the better ear and awareness listening strategies
  3. special telephone listening strategies are not needed
  4. the hearing aids use all 4 microphones to form a very narrow directional beam
6.  What are the possible microphone mode configurations of Binaural Directionality II?
  1. Bilateral directional
  2. Asymmetric
  3. Bilateral omnidirectional
  4. All of the above
7.  When would Binaural Directionality II apply a bilateral directional response?
  1. When the SNR is very low
  2. When noise is present
  3. When there is speech detected in front but not in the rear, and noise is present
  4. In quiet
8.  Hearing aid users who understood and used switchable directionality reported using a directional response in what percentage of their hearing aid use time, on average?
  1. 10%
  2. 78%
  3. 100%
  4. 22%
9.  What would be an example of an auditory object in a kitchen scene?
  1. The sound of water running in the sink
  2. The sound of an onion being chopped
  3. The sound of the refrigerator door opening
  4. All of the above
10.  Spatial Sense contributes to preserved localization and sound quality by combining
  1. Hearing aids with wireless accessories
  2. Spatial cues
  3. Pinna restoration and binaural compression algorithms
  4. Binaural volume control and program changes

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