TTT voice drain for groups help!

so since I have a lot of mic spamming on my server like literally ever single player uses mic so the first 1-2 min are just a huge shout fest I made the mic drain really low however
I want to reward regulars players so that they can speak more freely.
so I want to change the voice drain rate to specific groups.
How do I do it and where?

Instead of using a fast mic drain, I’d recommend your staff to just gag mic spammers.

I dont believe that gagging half of the playerbase will result in any positives
also it reduces the communication which is important factor of TTT
and my question was how to do what I asked for not find a different solution

That is where the voice drain occurs. Just check their usergroup and change the drain amount based on that.

thanks man