What impacts should be avoided during the use of conference audio? There are many kinds of interference caused by audio signal during transmission, including power interference, interference between devices and optical interference. Next, Shandong conference room audio manufacturer will explain to you.
1. Power interference. Poor grounding of power supply, poor grounding contact between equipment and impedance mismatch between equipment, equipment power supply without "purification" treatment, audio cable and AC cable laid in the same pipe, the same trench or the same bridge will cause confusion and interference to audio signal, forming low-frequency AC "buzz" sound.
2. Interference between equipment. The "howling" is caused by the positive feedback between the speaker and the microphone. The main reason is that the microphone is too close to the speaker or the microphone points to the speaker. The acoustic delay will produce "empty sound".
If the microphone picks up the sound source signal and the amplified signal at the same time, or if the distance between two microphones and the sound source is different, pick up the signal from the same sound source, or if one microphone picks up the sound and amplifies the signal of another microphone, there will be a corresponding distance difference and delay. When these signals are superimposed, some frequency components will cancel each other, thus forming "empty sound".
3. Light interference. If the ballast is used for intermittently activated lamps in the venue, high frequency radiation will be generated when the lamp is excited, and it will be connected through the microphone and its wires, and a "click" will be generated. The sound of "squeaking"; In addition, high-frequency electromagnetic interference from outside will also cause interference.
The sound recovery of video conference should be based on the theoretical knowledge of acoustics. According to the actual situation, the mixer and equalizer should be flexibly adjusted to process and beautify the sound, make up the defects of the sound field, and create ideal acoustic effects.
Properly adjust the compression amount. When encountering a sudden high peak signal, the limiter will not be overloaded and distorted. At the same time, it is necessary to avoid the compression limiter from being in the compression state for a long time to make the sound connection smooth and smooth.
What impacts should be avoided during the use of conference audio? The above is the answer to the question. If you don't know anything about it, please come to our website at any time https://www.wenguangzhineng.com Consult!