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The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

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Introduction to the special issue on sound absorption and diffusion: Modeling, measurement, and applicationa).

Mélanie Nolan^1,2, Peter D'Antonio³, Ning Xiang⁴

¹Departamento de Ingeniería Audiovisual y Comunicaciones, Universidad Politecnica de Madrid, Madrid 28031, Spain.

The Journal of the Acoustical Society of America

|May 20, 2026

Summary

This special issue explores sound absorption and diffusion, covering modeling, measurement, and applications in architectural acoustics. It highlights recent advances and future research directions in the field.

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Area of Science:

Acoustics
Architectural Acoustics
Materials Science

Background:

Architectural acoustics relies on understanding sound absorption and diffusion for effective room design.
Predicting and measuring the acoustic performance of surfaces is crucial for noise control and sound quality.

Purpose of the Study:

To introduce a special issue compiling the latest research on sound absorption and diffusion.
To showcase advances in modeling, measurement, and application of absorptive and diffusive surfaces.
To identify challenges and future directions in architectural acoustics.

Main Methods:

Compilation of 13 peer-reviewed articles from international research groups.
Thematic organization of contributions to highlight key areas.
Synthesis of current knowledge and future perspectives.

Main Results:

The special issue presents cutting-edge research on sound absorption and diffusion.
Advances in prediction, measurement, and design of acoustic surfaces are showcased.
Emerging trends and persistent challenges in the field are identified.

Conclusions:

This collection offers a comprehensive overview of the state-of-the-art in sound absorption and diffusion.
It provides valuable insights for researchers and practitioners in architectural acoustics.
The issue sets the stage for future advancements in the field.