Abstract
The Reflections series takes a look back on historical articles from The Journal of the Acoustical Society of America that have had a significant impact on the science and practice of acoustics.
Highlights
In 1939, Maa1 published a landmark article in the Journal of the Acoustical Society of America (JASA) on an accurate equation to determine the number of normal modes of sound waves in rectangular rooms at frequency ranges where the room dimensions are comparable with acoustic wavelengths
The contributions of Bolt (NB) and Maa provide an accurate theory to predict the number of normal modes using the room dimensions (V, S, L) and the upper limit frequency fu
When Schroeder explored the modal frequency responses in large rooms, he traced back to Bolt’s work along this line to derive and justify “Schroeder’s frequency,”8 which is a critical frequency below which distinct normal modes are recognizable
Summary
Citation: The Journal of the Acoustical Society of America 150, R11 (2021); doi: 10.1121/10.0007459 View online: https://doi.org/10.1121/10.0007459 View Table of Contents: https://asa.scitation.org/toc/jas/150/6 Published by the Acoustical Society of America
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