Neglecting these issues with the conference audio system can affect the sound quality
May 21,2024
During the entire process of applying conference audio systems, problems such as loud noise, loud noise, imbalanced sound ratio, lighting effects, and power on/off effects often arise due to early failure to adjust or timely maintenance and upkeep. Below, we will analyze the reasons for the emergence of this difficult problem for everyone.
Neglecting key points such as conference sound systems can greatly affect sound quality
1. The noise is loud. Due to excessive gain values, the use of automatic gain control methods, and mismatched characteristic impedances, environmental capacity noise occurs. It harms the image quality, gentleness, and brightness of the sound, and in severe cases, it covers up the noise in the main venue.
2. Loud noise. The basic principle is that the sound of a professional sound system is fed into the microphone, forming a positive feedback circuit between the speaker and the microphone. The main reason for the noise is due to the unscientific placement of the microphone and speaker in the reasonable layout of the conference hall.
3. The proportion of sound is imbalanced. If there is an imbalance in the proportion of sounds between the control room, venue, and the main venue for speeches, it will endanger the balance of remote control sounds in other main venues, leading to a decrease in the overall actual effect of the conference.
4. The influence of lighting effects. If electronic ballasts are used to intermittently start lighting fixtures in the main venue, when the LED tubes are activated, they will cause a high-frequency radiation source and produce a "squeaking" sound due to the microphone and wires being connected in series; If the microphone cable is too close to the light cable, there may also be a squeaking sound.
5. Switching power supply impact. Poor grounding device of switch power supply, loose grounding wire and mismatched characteristic impedance in the middle of machine equipment, and failure to clean the switch power supply of machine equipment all cause low-frequency oscillation effects on audio signals, resulting in high-frequency communication "buzzing" sound.
In order to ensure the quality and safety of each liquidity performance, and give people a beautiful song, it is recommended to carefully check the data signal cables. The sound system company recommends selecting reliable cables that shield the network density as much as possible. When laying, it is necessary to protect machinery and equipment that may cause impact as much as possible. The front, back, left, and right levels should use the same switch power supply as much as possible to avoid noise caused by different ground potential differences of different transformers.
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