Sound waves propagate spherically at the speed of sound and reduce their sound intensity with increasing distance. This process is strongly influenced by absorption of the sound waves. A distinction is made between two limiting cases:
1. undisturbed sound propagation in free field
2. total sound reflection.
The type of sound propagation in the working area of a company will usually be between these two idealized extreme cases. In room acoustics, the structural and technical design of the surroundings or the surrounding room is described by parameters such as sound absorption coefficient, sound insulation level, insertion loss and reverberation time. These parameters are important aids in noise reduction technology.
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