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Chapter 12

Large Room Acoustics

by Don Davis

12.1 What Is a Large Room?

Use of the Sabinian Equations in Large Reverberant Spaces

The Sabine Equation

Specific Versus Statistical

Calculating the Rate of Decay of Reverberant Sound Energy

Improved Reverberation Time Calculations

Importance of Sabine

Limitations of All Acoustic Equations Based on Geometry and Statistics

12.2 Levels Defined: Sound Power Level (L_W), Sound Intensity Level (L_I), and Sound Pressure Level (L_P)

Sound Power Level (L_W)

Sound Intensity Level (L_I)

Sound Pressure Level (L_P)

12.3 Levels in Enclosed Spaces

Hopkins-Stryker—US and SI

Other Terms Derived from Hopkins-Stryker

12.4 Differentiating Between Reverberant Level and Reverberation Time

12.5 Evaluation of Signal-to-Noise ...

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