1. The noise caused by electromagnetic radiation

Electromagnetic radiation causes differential electromagnetic wave radiation interference in the noise environment, such as high -frequency electromagnetic wave radiation interference of communication equipment such as mobile phones, intercom machines. In order to let guests sing the noise of singing this noise, we require our employees to remind customers not to bring their communication equipment close to audio equipment when they provide services to guests.

2. Noise generated by the ground circuit.

In a professional audio system, the entire system must be found in good grounding, and ground resistance is less than 4 ohms. Otherwise, the device in the lighting audio leasing system will not flow into the earth due to various radiation and electromagnetic induction, thereby forming a noise voltage superimposed in the audio signal.

3. The noise generated inside the audio equipment

If the quality of the audio equipment purchased by KTV is not good or the debugging is not proper, there are reasons for this. Therefore, when buying lighting audio leasing equipment, you need to pay attention to the audio equipment. There is an indicator -signal -to -noise ratio and professional tuning. Audio manufacturers remind everyone to pay attention to checking the information in this area when buying.