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Exploration of the Functional Effect of Modified Gain Precalculation on Soft Speech Intelligibility

NCT07388784 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2026-04-24

No results posted yet for this study

Summary

An exploratory investigation of gain precalculation principles in CE-labelled Sonova brand hearing instruments (e.g. Phonak hearing instruments) is intended to be conducted on hearing impaired participants. These gain precalculation principles are enabled by respective hearing instrument technologies and hearing instrument algorithms. The aim of the study is to investigate and assess strength and weaknesses of these gain precalculation principles in terms of speech intelligibility to determine their application in hearing instruments (Phase of development). Objective laboratory measurements as well as subjective ratings will be carried out. This will be a controlled, single blinded and randomized active comparator clinical evaluation which will be conducted mono centric at Sonova AG Headquarter based in Stäfa.

Conditions

Interventions

DEVICE

Competitor device, hearing aid with standard gain precalculation principle

Each participant will be fitted with two different pairs of hearing aids with different gain precalculation principles. Gain precalculation applies the amplification of sound signals in the hearing aid. The active comparator condition is the state of the art hearing aid gain precalculation from a competitor device.

DEVICE

Hearing aid with gain precalculation principle 1

Each participant will be fitted with two different pairs of hearing aids with different gain precalculation principles. Gain precalculation applies the amplification of sound signals in the hearing aid. The experimental conditions vary in their parametrization to result in different degrees of added amplification.

DEVICE

Hearing aid with gain precalculation principle 2

Each participant will be fitted with two different pairs of hearing aids with different gain precalculation principles. Gain precalculation applies the amplification of sound signals in the hearing aid. The experimental conditions vary in their parametrization to result in different degrees of added amplification.

Sponsors & Collaborators

  • Sebastian Griepentrog

    lead INDUSTRY

Principal Investigators

  • Josephine Hollenbach · Sonova AG

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
99 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-04-20
Primary Completion
2026-05-30
Completion
2026-05-30

Countries

  • Switzerland

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07388784 on ClinicalTrials.gov