How to solve low frequency noise

There are generally three methods to control low-frequency noise: controlling noise sources, protecting communicators and cutting off transmission channels. You can use one of them alone, but generally speaking, the three methods work best together.

For example, installing soundproof windows or using double-layer or multi-layer glass windows, when choosing household items, try to use softer materials, such as soft beds, soft sofas and soft walls, which are all ways to protect communication. In addition, it can also be actively controlled from the source, such as spraying water-based damping paint on elevator cars and substations.

Extended data

Low-frequency noise is mainly divided into structural sound transmission, air sound transmission and standing wave according to the transmission route, and standing wave is the most harmful. Structural sound transmission refers to the transformer, water pump and central air conditioner installed in the building, which transmits low-frequency vibration sound waves to all residents through the basic structural beams and load-bearing beams of residential buildings.

To solve low-frequency noise, it is necessary to take targeted control measures according to specific noise sources, such as changing the original stress position, operation mode, balance point, speed and bearing parameters to reduce vibration and noise.

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