Key Points of On-site Control of Feedback Suppressor in Stage Sound System

　　The main function of the feedback suppressor in the stage audio system is to prevent the system from generating feedback and protect the speaker equipment. Here are some problems and troubleshooting that need to be paid attention to when adjusting the electronic frequency divider:

　　1. When using the microphone to suppress the feedback point, it is best to find a few microphones that are often used, and constantly change the position of the microphone during adjustment. You can also put a little background music or speak some words into the microphone during adjustment. This can make the sound field more active, which is more conducive to finding the acoustic feedback frequency accurately and quickly.

　　2. If there is a compressor in the system, pay attention to connecting the compressor directly, and then restore it after adjustment. And other audio processing equipment in the system, such as mixer, equalizer, exciter, frequency divider, effector, etc., should be adjusted to normal working condition.

　　3. Pay attention to check the resolution of the feedback suppressor used in the system to the music signal and the microphone feedback signal. The detection method is: turn off all the microphones, connect the feedback suppressor in series with any channel with music signals, and then the most It is good to play a disco music, and continuously increase the volume of this channel. If you find that the feedback suppressor starts to work and seriously affects the sound quality, it proves that the feedback suppressor is not perfect.

　　4. One thing needs special attention: if you have adjusted the feedback suppressor, do not press the Reset button during the live performance, because this will clear all the parameters you have set before, and reset the feedback suppressor. It has become the original state of the factory, which is very dangerous. The system is likely to have a strong whistle, and even damage the equipment in severe cases.

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