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Open-Source hearing aid could make better hearing more accessible

NCT ID NCT03686046

Knowledge-focused Sponsor: San Diego State University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 02, 2026 · Last updated Jul 02, 2026

Summary

This study tests an open-source speech-processing platform, called the Master Hearing Aid, as a wearable hearing aid for people with sensorineural hearing loss. Participants will wear the device in real-world settings and adjust it to their liking, then complete speech perception tests and interviews about its performance and acceptability. The goal is to see if this customizable, research-focused platform can be a practical hearing aid option.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
open-source speech-processing platform (Master Hearing Aid)
What this could lead to
If successful, this could lead to more customizable and affordable hearing aid options for people with sensorineural hearing loss.
What could go wrong
This is a small, early-stage study focused on usability, not long-term effectiveness. The device may not work as well as commercial hearing aids in real-world settings.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

22 people

The number who actually took part.

Started

May 2019

Finished

May 2020

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adults with sensorineural hearing loss Residents of San Diego county and North county, California

Ages

30 to 90 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: \- Sensorineural hearing loss Exclusion Criteria: * Cognitively challenged * Legally blind

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Conditions

The condition(s) this trial relates to.

Hearing Loss, Sensorineural sensorineural hearing loss disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hearing loss, sensorineural

Contacts and locations

Locations

  • San Diego State University, Audiology Clinic

    San Diego, California, 93402, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.