CHAPTER 11
Reverberation
If you press the accelerator pedal of an automobile, the vehicle accelerates to a certain speed. If the road is smooth and level, this speed will remain constant. With a constant force on the accelerator, the engine produces enough horsepower to overcome frictional and aerodynamic losses, and a balanced (steady-state) condition results. If you take your foot off the accelerator, the car will gradually slow, and come to a stop.
Sound in a room behaves similarly. When a loudspeaker is turned on, it emits noise in a room that quickly grows to a certain level. This level is the steady-state or equilibrium point at which the ...
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