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Question:

Combination sound barrier steel mold sound insulation effect

Combination sound barrier steel mold sound insulation effect

Answer:

In order to make the barrier noise reduction effect is better, should try to make the barrier close to the sound source or receiving point.
And the length, can not be just with the width of the receptor, must be the nearest distance with the nearest receptor subject to the left and right sides of the extension of the length of 4 times the distance in order to prevent the sound from both ends into the receptor.
Sound insulation, height and length are two key, double sign highway combination of sound insulation as long as the road and the receiver can block the line of sight, at least you can reduce the volume of 5 dB, and each additional 1 meter, can reduce 1.5 dB

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