
Summary
In the initial fit condition using a power dome with slits, the Otofonix Groove struggled considerably. Speech in quiet and speech in noise both measured well below the category average, indicating limited audibility benefit for the target hearing loss profile. Own-voice comfort scored 1.80/5, reflecting noticeable occlusion issues despite the vented dome. Feedback handling was a relative strength at 5.00/5, showing excellent stability. Music streaming quality also fell well below average. The overall initial fit score of 0.64/5 was well below average for prescription devices.
The tuned fit condition with a closed dome did not improve performance—in fact, the overall fit score dropped to 0.43/5. Speech metrics remained well below average, and the move to a more occluding coupling worsened own-voice comfort significantly, dropping to 0.40/5. Feedback handling maintained its strong 5.00/5 rating. The lack of improvement with professional adjustment suggests the device's amplification characteristics have inherent limitations that fitting changes cannot address, an unusual finding for a prescription hearing aid.
Lab Review Scores
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