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Can Sound Quality in Hearing Aids be Evaluated?

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1.  Which of the following describes Surround Sound by ReSound technology Direct to iPhone connectivity A sound processing strategy that models, cleans, balances and stabilizes the sound A home theater system developed by ReSound An asymmetric directional fitting strategy

2.  Which of the following is true regarding sound quality in hearing aids Sound quality is easy to measure Hearing instrument manufacturers generally do not claim good sound quality All digital hearing instruments are equivalent in terms of sound quality Dimensions of sound quality correlate with patient satisfaction

3.  Which sound quality attribute was not rated by assessors in the DELTA Senselab study? Artifact/distortion loudness naturalness brightness

4.  Applying the Filter Model to sound quality evaluation involves measuring: The physical stimulus The perception of the physical stimulus The subjective judgment of the perceived stimulus All of the above

5.  What was not an advantage of the evaluation method used in the DELTA Senselab study Allowed assessors to take other hearing aid characteristics, such as appearance, into account Mitigated auditory memory limitations Used assessors who were shown not to be biased by experience with their current hearing aid brand Provided better discrimination among the tested samples

6.  Sound quality in hearing aids can be described in terms of: How amplified sounds fit within the user’s range of hearing Whether sound is an exact reproduction of the original acoustic signal The degree to which undesired sounds such as background noises, acoustic feedback or signal processing artifacts are heard and found annoying Both a and c

7.  Why is the Environmental Classifier important for sound quality? It helps make it clear to the user when the different sound processing algorithms are “kicking in” It always makes speech louder It makes the sound processing manually controllable by the patient It ensures the sound processing algorithms function in a transparent way

8.  Which of the following is not a side effect of amplification that affects sound quality? Acoustic feedback Occlusion Current drain Amplification of undesired sounds

9.  What should a hearing instrument compression system ideally do? Amplify all sounds equally Compensate for reduced dynamic range Provide frequency resolution similar to the human auditory system both b and c

10.  The advanced classification system that steers the Environmental Optimizer II settings uses seven categories that are defined in terms of: presence and levels of speech and noise presence of speech and music user-defined parameters who is speaking