Mute marshalling is a common function of large high-end Mixing console.

It is a very useful function in live performance sound reinforcement.

For example, during pre performance rehearsals, in order to achieve balance, the positions of the channel pushers for each instrument in the tuned band will vary, and during the performance, they will need to be adjusted appropriately for practical needs. And the number of pushers will be quite large, with only 8 microphones needed around a set of drums.

If it is not used temporarily during the performance, the sound engineer will have to memorize the level position of each microphone input channel to restore them to their original state when needed. This is very difficult to achieve in the rapidly changing live performances, but it can be done and the reaction speed will be relatively slow. Once mistakenly moved, it will affect the overall effect.

If the Mixing console has the function of mute grouping, these channels can be grouped into a mute grouping to implement unified mute control.

Whether it is mute together or open together, with just one click, the position and level value of each channel's pusher will not change, and multiple different mute combinations can be set simultaneously.

But this function only centrally controls whether the selected channel is muted or not. If multiple pushers need to be pushed up or pulled down together during use, and the "pusher time" is used to achieve a fade in and out effect, VCA grouping function is needed.