The audio system is composed of multiple devices, such as microphone, DVD card seat, mixer, effector, balancer, pressure limiter, incentive, electronic frequency division, power amplifier, speaker, etc. Each device is every device. It may be the source of noise. If you want to find out which unit is generated from which unit is generated, you need to test the inherent noise of each unit.
How to quickly eliminate noise in the professional performance audio system
Open the audio system: The order of booting is opened step by step in the order of the signal process. After booting, there was noise in the speaker. First of all, you can turn off the power supply of the wireless microphone receiver to distinguish whether there is no noise. If the noise disappears, it proves that the noise is generated by the wireless microphone receiver: if there is no noise, the noise is not generated by the wireless microphone receiver. You can detect other units.