Nuheara Completes Hearing Aid Clinical Trial
Nuheara Ltd announced that it has successfully concluded its hearing aid clinical trial with the final report received from the National Acoustic Laboratories (NAL).
Nuheara Ltd announced that it has successfully concluded its hearing aid clinical trial with the final report received from the National Acoustic Laboratories (NAL).
A study published in Trends in Hearing looks at how users of an iPod-controlled app tend to adjust their hearing aid settings after being fit to an NAL-NL1 prescriptive fitting. They found that the users' gain adjustments were, in general, consistent for each person, but the adjustments varied substantially between individuals. However, despite their adjustments, the majority of their final preferred settings achieved similar speech-in-noise results as the NAL-NAL2 target settings with which they'd originally been prescribed.
This study shows that 97.7% of subjects showed deviations from the NAL-NL2 in excess of 5 dB in both ears—well in excess of the nearly two-thirds of hearing aid fitting errors reported by the now-famous Consumer Reports article of 2009. Research continues to show that hearing aids that provide more real-ear verified aided speech audibility result in better outcomes than hearing aids that do not provide as much aided speech audibility.