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Home-Based Audiometry With a Smartphone App: Reliable Results?

Amaury Hazan¹, Joanna Luberadzka^1,2, Jonatan Rivilla¹

¹Jacoti BV, Wevelgem, Belgium.

American Journal of Audiology

|August 4, 2022

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This summary is machine-generated.

This study validated a smartphone hearing test app, DuoTone, showing its results are comparable to clinical audiometry. The app offers reliable hearing threshold measurements with good test-retest reliability for users.

Area of Science:

Audiology
Mobile Health Technology
Biomedical Engineering

Background:

Smartphone applications are increasingly used for health monitoring.
Accurate hearing assessments are crucial for early detection and management of hearing loss.
Unsupervised hearing tests require robust validation for clinical utility.

Purpose of the Study:

To evaluate the test-retest reliability of a smartphone-based hearing test (DuoTone).
To compare the accuracy of the DuoTone app against standard clinical audiometry.
To assess the feasibility of unsupervised hearing testing in uncontrolled environments.

Main Methods:

The DuoTone app incorporates ambient noise monitoring and a graphical user interface for quality control.
Hearing thresholds from the app were compared to traditional audiometry in 13 subjects.

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Test-retest reliability was analyzed using cloud-stored data from 1,641 app users across 12 frequencies.

Main Results:

DuoTone-obtained thresholds showed no significant difference compared to clinical audiometry.
Test-retest results within 5 dB ranged from 60% to 77% across frequencies.
Reliability in app users was comparable to in-clinic audiometry test-retest reliability.

Conclusions:

The DuoTone smartphone hearing test demonstrates accuracy comparable to clinical audiometry.
The app provides reliable hearing threshold measurements between 15 and 80 dB HL.
Smartphone-based hearing tests offer a viable, reliable alternative for hearing assessment.