Speech Locator In-car Performance Evaluation

Not Applicable

Completed

• Conditions: Hearing Loss
• Interventions: Device: Investigational adaptive directional microphone strategy; Device: Comparator omnidirectional microphone strategy; Device: Comparator fixed directional microphone strategy

• Registration Number: NCT05054816
• Lead Sponsor: Sonova AG

Brief 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.

Detailed Description

Not available

Study Timeline

• Status Verified: 2021-09
• Study First Submitted: 2021-09-14
• Study First Submitted QC: 2021-09-14
• Study First Posted: 2021-09-23
• Study Start: 2022-02-11
• Primary Completion: 2022-03-11
• Study Completion: 2022-03-11
• Last Update Submitted: 2022-04-08
• Last Update Posted: 2022-04-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Investigational adaptive directional microphone strategy	Investigational adaptive directional microphone strategy	Receiver-in-canal hearing aid with an investigational adaptive directional microphone strategy.
Comparator omnidirectional microphone strategy	Comparator omnidirectional microphone strategy	Receiver-in-canal hearing aid with a comparator omnidirectional microphone strategy.
Comparator fixed directional microphone strategy	Comparator fixed directional microphone strategy	Receiver-in-canal hearing aid with a comparator fixed directional microphone strategy.

Primary Outcome Measures

Name	Time	Method
Sound quality rating	Up to 6 hours over 3 2-hour sessions	The sound quality ratings will be conducted via a computer-based questionnaire that contains sound samples that participants listen to and rate. Sound quality rating scales are continuous and range from 0 (worst) to 100 (best) with 5 descriptors unique to the dimension at 5 intervals on the scale (0, 25, 50, 75, 100); Dimensions rated are: * Speech clarity: Very unclear, Unclear, Slightly clear, Clear, Very clear; * Noise annoyance: Extremely annoying, Very annoying, Moderately annoying, Slightly annoying, Not at all annoying; * Spatialization: I don't know where the talker is, the talker might be \[at location\], The talker is probably \[at location\], The talker is \[at location\], The talker is definitely \[at location\]; * Overall impression: Bad, Poor, Fair, Good, Excellet; * Transition annoyance: Extremely annoying, Very annoying, Moderately annoying, Slightly annoying, Not at all annoying

Trial Locations

Locations (1)

Sonova Innovation Centre Toronto; 🇨🇦 Mississauga, Ontario, Canada