How to deal with acoustic noise.Brand bar audio sales

source:Industry News release time:2021-12-23 Hits: Popular:Brand bar audio wholesale

　　 I3PR Car stereo manufacture

　　There are many situations when the audio is used improperly that can cause noise, such as signal interference, poor connection of the interface or connection line, poor quality of the audio itself, and so on.

　　Generally speaking, acoustic noise can be roughly divided into electromagnetic interference, mechanical noise, and thermal noise according to the source. For example, the amplifiers, transformers and other components of active audio are all placed inside the speaker itself, and the noise generated by mutual interference is inevitable. In addition, a lot of acoustic noise is caused by poor contact or short-circuit between the signal line and the connector. Maintaining the excellent contact performance of each connector is a necessary condition to ensure the normal operation of the audio. For example, some continuous beeps are basically signal cables or plug problems, which can be solved by exchanging satellite boxes and other means. Here are some other sources of noise and processing methods.

　　Electromagnetic interference noise sources and treatment methods

　　Electromagnetic interference can be mainly divided into power transformer interference and stray electromagnetic wave interference. This noise often manifests as a small hum. Generally speaking, the interference of the power transformer is caused by the magnetic leakage of the power supply of the multimedia speaker. When conditions permit, the effect of installing a shielding cover on the transformer is very obvious, and the magnetic leakage can be blocked to the greatest extent. The shielding cover can only be made of iron Type material production. We should try our best to choose products with big brands and solid materials. In addition, using an external transformer is also a good solution.