OBJECTIVE: To provide hearing care professionals (HCPs) with an overview of the NAL-NL3 fitting system and to guide its use in clinical practice. The aim is to translate the research underpinning NAL-NL3 into practical guidance. DESIGN: This Clinical Note outlines the rationale and clinical application of the NAL-NL3 fitting system, which at launch comprises the NAL-NL3 Prescription, the Comfort in Noise (CIN) Module, and the Minimal Hearing Loss (MHL) Module. RESULTS: The NAL-NL3 fitting system was developed through laboratory and field testing and feedback from hearing care professionals. The NAL-NL3 Prescription provides amplification that aligns more closely with clinical needs, improving first-fit satisfaction and clinical efficiency for a wider range of cases. The Comfort in Noise Module offers a comfort-focused amplification profile adapted for noisy environments, improving comfort and reducing listening fatigue while maintaining speech intelligibility. The Minimal Hearing Loss Module extends hearing aid fitting to adults with normal or near-normal hearing thresholds who experience hearing difficulties, providing safe access to hearing aid technologies. CONCLUSIONS: NAL-NL3 is the next generation of NAL's evidence-based philosophy towards prescribing hearing aid amplification. Its modular design enables hearing care professionals to better personalise fittings to patients' communication needs, supporting patient-centred care.
Croteau et al. (Sat,) studied this question.