Models for pure tone audiometry enabling computational evaluation: Introduction to Japanese extensive experiences

Area of Science:

• Audiological Medicine
• Acoustics
• Psychoacoustics

Background:

• Masking in pure tone audiometry is a fundamental audiological test, with theoretical models discussed since the 1950s.
• Japanese research on masking, though extensive and leading to mathematical simulations, remains largely undisclosed internationally.

Purpose of the Study:

• To introduce Japanese masking experiences and theoretical derivations to the English-speaking scientific community.
• To provide a foundational understanding of masking principles using "Grand Principles (GPs)" and detailed models.

Main Methods:

• Explanation of the Standard Masking Model and Extended Masking Model with categorized variables.
• Presentation and computerized evaluation of the "ABC" heuristic method for optimizing masking.
• Theoretical derivation from "Grand Principles (GPs)" for basic masking concepts.

Main Results:

• Detailed explanation of two masking models (Standard and Extended) to prevent common misunderstandings.
• Demonstration of the "ABC" method's accuracy in utilizing sufficient masking and avoiding overmasking (cross-masking).

Conclusions:

• The article provides a basis for international discussion on masking in audiology.
• It serves as a theoretical introduction to masking for researchers and students in the field.