In fact, it may be unrealistic to completely eliminate the howling of the conference room audio system, but the following measures can greatly reduce the phenomenon of howling
Generally speaking, the use environment of the sound reinforcement system installed in the conference room is relatively quiet, as long as the layout is reasonable, there will be no howling phenomenon, but sometimes due to the interference of certain factors, the howling phenomenon is also inevitable.
When playing the device, the two devices will interfere with the transmission of their respective frequency bands, which will cause a kind of sound pollution, which will not only affect the audiovisual but also cause damage to the machinery and equipment. The best solution is to separate the various devices on a fixed rack.
The connection of different systems must use a balanced isolation transformer to connect the audio system to the audio system of the TV OB truck; the connection of the system to a large electronic display screen; or the connection to the electronic computer, etc., generally a balanced isolation transformer is required.
Most of the equipment in the audio system needs electricity. Although the input is AC power from the power grid, all the circuit work requires DC power. Except for the individual battery, it must undergo the process of voltage transformation, rectification and filtering to complete the conversion. Part of the circuit is what we call the power supply.