What is the highway sound barrier? When is someone applying a sound barrier?
Usually we think that the barrier can prevent the spread of direct sound, and the transmission sound has enough attenuation, and the impact of transmission sound can be ignored.
Sound waves in the transmission process, the sound barrier encountered, there will be reflection, transmission and diffraction of three phenomena.
The insertion of a facility between the sound source and the receiver causes a significant additional attenuation of the acoustic wave propagation to weaken the noise in a certain area of the receiver, which is called noise barriers.
