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ReSound's Directional Philosophy

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1.  Adaptive directional systems will
  1. fix the directional polar characteristics to match a hypercardioid pattern.
  2. change the distance between the microphones to change the polar pattern.
  3. adapt the polar characteristics to provide the least gain for azimuths with the most noise.
  4. adapt the listener into different listening situations.
2.  Directional microphones have an inherent gain reduction in which frequency region compared to omni-directional modes?
  1. Low frequencies only
  2. Middle frequencies only
  3. High frequencies only
  4. Both middle and high frequencies
3.  ReSound Bandsplit Directionality provides what benefit(s)?
  1. Improved low-frequency sound quality with directional benefit
  2. Improved speech understanding in directional frequency areas
  3. Adjustable crossover frequency for ideal balance between directional benefit and sound quality
  4. All of the above
4.  ReSound SoftSwitching
  1. provides a directional mode if any sound is coming from the back.
  2. provides an omnidirectional mode only when there are no sounds from the back.
  3. switches between directional modes when sounds come from the back, independent of what type of sound comes from the back of the listener.
  4. switches between directional modes depending on the type sounds (speech/noise) coming from either the front or the back.
5.  Natural Directionality II is programmed with
  1. Both ears Omnidirectional.
  2. Both ears directional.
  3. One ear directional and one ear omnidirectional.
  4. Both A & B
6.  Natural Directionality II
  1. Provides improved signal-to-noise ratio for sounds in front of the listener
  2. Provides awareness and audibility of sounds around the listener
  3. Provides the listener an increased noise reduction setting
  4. Both A & B
7.  Binaural Directionality
  1. uses the input to both hearing aids to determine the best directional setting.
  2. changes the directional setting between four different directional modes depending on the environment.
  3. provides both directional benefit and 360 degrees awareness when appropriate.
  4. All of the above
8.  When a patient with hearing loss wants to hear a person sitting on his/her right side in background noise, the hearing aids should be in the following directional settings for the best understanding:
  1. Both ears directional due to the background noise.
  2. Right hearing aid in omnidirectional mode and left hearing aid in either omni or directional.
  3. Left hearing aid in omnidirectional mode and right hearing aid directional.
  4. None of the above
9.  Spatial cues are provided by the following:
  1. Interaural Timing Differences
  2. Interaural Level Differences
  3. Visual Cues
  4. All of the above
10.  To restore interaural level differences between the two hearing aids
  1. the pinna and concha directional cues must be restored due to microphone placement.
  2. the compression between the two devices must be synchronized.
  3. the low-frequency phase differences must be maintained.
  4. Both A & B

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