“standardize the loudness”
There’s Level Speech.
Did one of your microphones stop working? What’s the show? Three way discussion? Neighborhood podcast?
Are you trying to record a Zoom or other on-line conversation? That can be crazy hard to do well and it is recommended you let Zoom do it. They have tools and processes to record their connections.
As you may have noticed, if the volume differences are too great, there will be background pumping and surging and even if you did get everything “evened out,” you still won’t end up with a good presentation. You might end up with more of a eavesdropping, spying, or surveillance sound.
Koz