Chapter 13

Small Room Acoustics

by Don Davis

13.1  Non-Statistical Spaces

13.2  Small Room Acoustical Parameters

13.3  Small Room Reverberation Times

13.4  Small Room Resonances

13.5  Modes

Damped and Undamped Modes

Modal Decay Rates

13.6  What Is an Eigen Mode?

Normal Modes Defined

13.7  Small Room Geometry

Desirable Room Ratios

13.8  The Initial Signal Delay Gap (ISD)

Selecting an Initial Signal Delay Gap (ISD)

13.9  Reflections

Useful Definitions

13.10  Reflection Free Zone

Development of the Reflection Zone

13.11  Diffusion

Quadratic Residue Diffusors

13.12  Conclusion

Bibliography

 

13.1 Non-Statistical Spaces

Sound systems are more frequently installed in spaces where the statistical equations are invalid than in spaces where they are valid. ...

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