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Using NAL-NL3 in clinical practice: a modular NAL fitting system for real-world listening needs
Matthew Croteau1, Catherine Kwok1
1National Acoustic Laboratories, Macquarie University, Sydney, Australia.
International Journal of Audiology
|June 27, 2026
Summary
The NAL-NL3 hearing aid fitting system offers improved, personalized amplification for diverse patient needs. Its modular design enhances first-fit satisfaction and clinical efficiency for hearing care professionals.
Area of Science:
- Audiology
- Hearing Aid Technology
- Acoustics
Background:
- The NAL-NL3 fitting system represents an advancement in hearing aid prescription.
- It is based on NAL's evidence-based approach to amplification.
Purpose of the Study:
- To provide hearing care professionals (HCPs) with an overview of the NAL-NL3 fitting system.
- To guide the clinical application of NAL-NL3, translating research into practical use.
Main Methods:
- Development involved laboratory and field testing.
- Feedback from hearing care professionals was incorporated.
- The system comprises the NAL-NL3 Prescription, Comfort in Noise (CIN) Module, and Minimal Hearing Loss (MHL) Module.
Main Results:
- The NAL-NL3 Prescription improves first-fit satisfaction and efficiency for a wider range of cases.
- The CIN Module enhances comfort and intelligibility in noisy environments, reducing listening fatigue.
- The MHL Module extends hearing aid fitting to individuals with normal or near-normal hearing thresholds experiencing difficulties.
Conclusions:
- NAL-NL3 is the next generation of NAL's evidence-based hearing aid fitting philosophy.
- Its modular design allows for personalized fittings tailored to patient communication needs.
- The system supports patient-centered care by enabling HCPs to better meet individual requirements.
