As an audio control device in the process of enterprise video conferencing, phantom power is
generally provided on the mixer.
When using a condenser microphone and the microphone cable is balanced, press the
phantom power switch to provide a polarized voltage to the microphone. In other cases, the
phantom power should be turned off. Avoid unnecessary energy losses and additional costs,
and do a good job of maintaining the system as a whole.
The mixer is an audio signal mixing and processing console that is the heart of the audio
processing system. The mixer consists of an input, a bus, and an output section, where the
bus section links the input and output sections. The process of processing the signal by the
mixer is as follows: the audio signal enters the mixer from the microphone or line input, and
after gain adjustment, enters the equalizer processing to complete the sound quality
Then, the attenuation ratio is used to adjust the mixing ratio, and then through the phase
adjustment, the left and right channel bus bars and the group bus are entered; at the same
time, the signals extracted before and after the faders enter the auxiliary bus. The mixed
signal from the busbar is mixed, amplified, amplitude-amplified, isolated and amplified, and
sent to the corresponding output interface.