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Chapter Three

Sound Isolation

[The weight of air. Interaction of the air vibrations with room boundaries. Reflexion, transmission and absorption. Reflexion and absorption as a means of isolation. The mass law, damping and decoupling. Frequency dependence of isolation needs. Level dependence of isolation needs vis-à-vis the non-uniform ear response. Floor, wall and ceiling isolation. Weight considerations. Material densities. The journey through a complex isolation system. Considerations regarding impact noises. Matters influencing studio location choice. The behaviour of mass/spring floor systems and the characteristics of fibrous and cellular base layers.]

3.1 Vibrational Behaviour

Sound waves in air can be remarkably difficult to stop. ...

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