1. Gemeinsame Interferenz für den Sitzungssaal-Lautsprechers ystem
Die durch das Audiosignal während der Übertragung erzeugte Störung ist vielfältig. Üblicher weise umfasst es Leistungs störungen, Interferenzen zwischen den Geräten, Lichtst örungen usw. Leistungs störungen: Es wird durch schlechte Erdung der Strom versorgung, schlechten Bodenkontakt und Impedanz fehl paarung zwischen Geräten, Strom versorgung ohne "Reinigung", Audio leitung und AC-Draht gleiche Leitung verursacht, gleicher Kanal oder Brücken rahmen. Alle von ihnen erzeugen eine Unordnung des Audiosignals und bilden einen nieder frequenten Wechselstrom "summen den" Ton.
2. Solutions for meeting room speaker system
The sound reduction of video conferencing should be based on the theoretical knowledge of acoustics and the flexible adjustment of the mixer and equalizer according to the different actual conditions, processing and beautifying the sound, making up the defects of the sound field, creating an ideal acoustic environment. Adjust the compression limiter appropriately, when the sudden large peak signal is not overloaded and has no distortion at the same time, avoid compression of the limiter for a long time in the compressed state, so that the sound link can achieve the smooth and round effect. For power interference, the following solutions can be taken:
1. Increase the power supply filter, use harmonic circuit to remove harmonics and "purify" the output power.
2. The input and output lines of the signal should be separated from the power supply lines, and can not be arranged in parallel.
3. Using twisted pair power cord, the total flux produced by two conductors is offset. To sum up, to make the video conference better, it is necessary to improve the aesthetic appreciation and artistic accomplishment of the sound, and to conceive and creative the reduction of the sound, so as to improve the artistic expressive force of the sound.