Our independent lab evaluation of the Otofonix Groove measures this rechargeable behind-the-ear prescription hearing aid across five performance dimensions. Below you will find our verdict, detailed scores, and audio recordings captured through standardized testing protocols.
Dr. Steve Taddei, Au.D. — Lab Director & Reviewer
Dr. Abram Bailey, Au.D. — Fact Checker / Editor
The Otofonix Groove offers excellent feedback handling but struggles with core speech clarity, best for users prioritizing whistle-free wear.
Top 90% of Prescription Hearing AidThe score card below displays how this hearing aid performed on speech in quiet, speech in noise, own voice, feedback management, and music quality. The purple SoundScore graph is the overall result, and the five graphs after it break it into individual measurements for the selected fit. Each curve shows how scores are spread across all tested hearing aids, and the dot and number mark the score for Otofonix Groove.
Every hearing aid is lab-tested in two states — as it sounds out of the box, and after professional tuning. Switch fits to update the five metric graphs below.
How clearly speech comes through in calm, one-on-one surroundings.
Speech understanding against loud background noise — the toughest everyday test.
How natural your own voice sounds while wearing the aids, without a boomy, plugged-up quality.
Sound quality of music streamed to the hearing aids over Bluetooth.
Resistance to the whistling and squealing caused by acoustic feedback.
Lab Assessment
Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.
Amplification Analysis
The graph below plots the measured amplification delivered by the Groove against established prescriptive targets. This visualization shows how closely the device matches the gain profile intended for the test hearing loss across the frequency range.
Audio Samples
We captured these audio samples through a standardized acoustic manikin fitted with the Groove under controlled conditions. A reference recording without any hearing aid processing is available for direct comparison.
How this hearing aid sounds in our lab scenes. Compare it out of the box and after professional tuning.
Scene type: Conversation
4 lab recordings of this product. They demonstrate relative processing in our lab and cannot predict an individual fitting outcome.
Test Documentation
Our technicians documented fit observations and the specific test configuration used during evaluation. The notes below detail both the Initial and Tuned conditions along with any relevant procedural observations.
With a Power Dome with Slits coupling, the Initial Fit achieved a normalized score of 2.7/5. Feedback handling was excellent at 5.0/5, providing stable performance. However, speech in quiet and speech in noise both scored 1.0/5, significantly below the category averages of 3.40 and 2.11 respectively. Own-voice comfort measured 1.8/5, and music streaming scored 0.0/5. The device's out-of-box setup prioritized stability over speech audibility in our testing.
Moving to a Closed Dome coupling in the Tuned Fit resulted in a normalized score of 2.5/5, a slight decrease of 0.2 points from the Initial Fit. Speech metrics remained unchanged at 1.0/5 for both quiet and noise conditions. Feedback handling maintained its excellent 5.0/5 rating. Own-voice comfort decreased notably to 0.4/5, while music streaming remained at 0.0/5. Professional fitting adjustments did not improve speech clarity in our testing protocol.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Power Dome with Slits | Closed Dome |
