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The sound quality of noise and sine vocoders does not generally correspond to the sound quality of cochlear implants fit to SSD patients.
Secondary results show that (1) aircraft noise annoyance is very stable through time and (2) that changes in aircraft noise annoyance and the identified psychological factors are correlated.
It was established that an HCP facilitated a change in pro-noise attitudes among adolescents.
Noise performance better than 2 K is achieved in the low-GHz range, which is comparable to the best InP results.
This new result shows that the NASA N+2 goal is approachable and that significant reduction in overall aircraft noise is possible through configurations with noise reduction technologies and operational changes.
The perfect fit of simulation versus measurements enables deeper analysis and balancing of noise contributors.
Our results also show that 1/f 3 noise is more predictable compared to 1/f 2 noise and in a fair comparison it affects the performance less.
The disadvantages associated with open-fit hearing aids include reduced benefits of directional microphones and noise reduction, as well as less compression and less available gain before feedback.
The results suggest that the direct method with least squares fit is more robust to noise compared to other methods but has slightly lower resolution results.

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