N/A
N=20
Speech Locator In-car Performance Evaluation
Hearing Loss
Bottom Line
View on ClinicalTrials.gov: NCT05054816 ↗Enrolled (actual)
20
Serious AEs
0.0%
Results posted
Aug 2025
Primary outcome: Primary: Speech Clarity — 77.2; 76.6; 63.6 units on a scale — p=<0.05
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Investigational adaptive directional microphone strategy (Device); Comparator omnidirectional microphone strategy (Device); Comparator fixed directional microphone strategy (Device)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Sonova AG
- Primary completion
- Mar 2022
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Speech Clarity |
77.2; 76.6; 63.6 | <0.05 sig |
| PRIMARY Noise Annoyance |
71.1; 61.4; 60.0 | <0.05 sig |
| PRIMARY Spatialization |
78.2; 77.7; 50.5 | <0.05 sig |
| PRIMARY Transition Annoyance |
71.7; 74.1 | <0.05 sig |
| PRIMARY Overall Impression |
61; 58.7; 40.6 | <0.05 sig |
Summary
Listeners will conduct sound quality ratings of recordings talkers in a moving car processed using three different microphone processing strategies: an investigational adaptive directional microphone, an omnidirectional microphone and a fixed directional microphone. Participants will listen to the recordings streamed via commercially-available and individually-prescribed hearing aids, and conduct ratings onsite in the lab. The procedure will involve a training session and within-subject repeated measures. Stimuli will be randomized.
Eligibility Criteria
Inclusion Criteria
- Adults (18-99 years) with ≥3 months hearing aid experience
- binaural, symmetric, sensorineural N2 (mild) to N5 (severe) hearing loss
- fluent in English
Exclusion Criteria
- children/teenagers
- normal hearing or hearing loss exceeding N5 (severe) by 10 dB
Data sourced from ClinicalTrials.gov (NCT05054816). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.