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Spectral iQ: Audibly Improving Access to High-Frequency Sounds

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1.  The peak energy of /s/, when spoken by a child or female talker, falls between _______________.
  1. 4,300 and 5,300 Hz
  2. 2,300 and 4,300 Hz
  3. 6,300 and 8,300 Hz
  4. 8,300 and 9,300 Hz
2.  High-frequency amplification is often limited by ______________.
  1. hearing aid bandwidth
  2. feedback
  3. poorly prescribed gains
  4. all of the above
3.  One technique, discussed in this article, for frequency lowering is __________ frequency transposition.
  1. non-linear
  2. curvilinear
  3. warp
  4. linear
4.  A second technique, discussed in this article, for frequency lowering is ____________ frequency compression.
  1. non-linear
  2. curvilinear
  3. warp
  4. linear
5.  The vertical axis (y-axis) on a spectrogram plots ______________.
  1. amplitude
  2. frequency
  3. time
  4. intensity
6.  Spectral iQ identifies inaudible high-frequency information and ______________.
  1. replicates this information at a lower frequency
  2. ignores it
  3. moves the information to a higher frequency
  4. none of the above
7.  Spectral iQ translates high-frequency information to lower frequencies __________.
  1. at all times
  2. once an hour
  3. once a minute
  4. when valuable high-frequency information is present
8.  The s-test as described in this article asks that listeners _____________.
  1. ignore word final /s/ and /z/
  2. detect word final /s/ and /z/
  3. detect word medial /s/
  4. detect word initial /s/ and /z/
9.  The mean and maximum benefit for detection of /s/ with Spectral iQ was______________.
  1. 5 and 10 percentile points
  2. 15 and 30 percentile points
  3. 10 and 20 percentile points
  4. 13 and 29 percentile points
10.  Frequency lowering has been a part of hearing aids for more than _____________.
  1. 80 years
  2. 70 years
  3. 60 years
  4. 50 years