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Oticon Opn - Part 2

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1.  In traditional directional systems The polar plots are always fixed The polar plots adjust to maximally reduce SPL from the back and sides The polar plots can only take on three discrete shapes The polar plots are always "backward facing"

2.  In traditional noise reduction systems Noise versus speech is determined within time windows measured in tens of milliseconds Noise reduction happens before directionality The long-term modulation pattern of the signal is analyzed Noise reduction operates only across the full bandwidth of the device

3.  In OpenSound Navigator Noise reduction work both long-term and also extremely rapidly Speech signals from the back and sides are treated the same The directional system isolates it's knowledge from the noise reduction process All of the above

4.  In OpenSound Navigator A backward facing polar plot provides an estimate of the noise to be eliminated The directionality works rapidly in sixteen channels Noise reduction is assisted by knowing the characteristics of the noise signal from the back and sides All of the above None of the above

5.  Binaural compression, enabled by binaural processing, is important for ensuring that interaural level differences (ILDs) are preserved to the highest degree. Binaural processing, which is part of Spatial Sound LX, constantly exchanges data about the sound level in each ear with thereby maintains the difference in input between the two ears. This enables the hearing instrument user to Ignore noise in the environment Hearing every sound in every situation Localize sounds better in the environment Avoid feedback in the hearing instruments

6.  The pupils dilate when The person is totally relaxed The person is under stress In response to the general health of the person All of the above

7.  Memory for what has just been said Can reflect the ability to process the information more deeply Declines if the words are harder to understand Can involve components of both short term and longer memory All of the above

8.  Pupil dilation Can only be measured subjectively Is very consistent across people Is NOT affected by factors such as lighting and drug use Varies depending on the cognitive difficulty of the task

9.  With Opn, users experience 20% less listening effort The ability to remember 20% more of conversations 30% better speech in speech understanding All of the above

10.  In the pupillometry study, there was statistically significant difference in pupil size when using Alta2 Pro versus Opn. The average pupil dilation at the peak time, showed a ______% reduction in pupil size when using Opn. 24 26 28 30