

Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.

In the initial fit condition with a vented sleeve coupling, the MDHearing Volt delivered below-average speech performance in our lab testing. Speech in quiet scored 2.50/5 and speech in noise scored just 0.50/5, both well under category averages. The more open vented coupling limits the device's ability to deliver adequate gain for moderate hearing loss. Feedback handling was excellent at 5.0/5, and own-voice occlusion was slightly better than average at 2.60/5, suggesting reasonable comfort for the wearer's own speech.
What is HearAdvisor's Initial Fit?
The Initial Fit approximates the most likely settings and eartips for a typical moderate hearing loss. Results are measured across the same 72 acoustic scenes in our custom-built lab, then scored on a 5-star scale using an auditory model.

Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Sleeve Vented | Sleeve Closed |



