// Evolving the philosophy: from the NAL rule to NAL-NL3
本研究回顧國家聽覺實驗室（NAL）助聽器調配規則的演變｜從早期線性規則發展至最新的NAL-NL3系統，核心目標是最大化語音理解並維持正常響度｜NAL-NL3引入新理念，兼顧多元使用者需求，提供基於證據且獨立於製造商的個人化助聽器調配方案，提升配戴效果與適用性。
// This review traces the evolution of National Acoustic Laboratories (NAL) hearing aid prescriptions from early linear rules to the latest NAL-NL3 system. The core goal has been to maximize speech understanding while maintaining normal loudness. The NAL-NL3 system continues this approach but also incorporates new philosophies to address diverse user needs. These evidence-based, manufacturer-independent formulas remain essential for personalized and effective hearing aid fitting.
Published 2026年6月24日
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