Sound-Proof Partitions: An Investigation of the Acoustic Properties of Various Building Materials, With Practical Applications (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Sound-Proof Partitions: An Investigation of the Acoustic Properties of Various Building Materials, With Practical Applications

The vibrations in this case are due to the vocal cords which are set into rapid oscillations by a stream of air from the lungs. An unbalanced motor may cause its supporting base to shake, thus imparting to the surrounding air small motions that are propagated as sound waves. A case for consideration in buildings is the generation of sound waves when a wall or floor is set in vibration by a motor, an elevator, or other agency.

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