Nice try. You're hitting all the high points.Noise Gate.
There is a noise gate on a newscaster's microphone because they record on a loading dock. I'm not sure if it's actually a loading dock or not, but it certainly sounds like one. She has an aggressive speaking style and can talk over almost anything, but each sentence has a tail on it when she stops talking and it can be really annoying. Sometimes you can understand conversations and hear other noises going on while she's speaking. They had an interview with two very highly respected politicians and they couldn't gate everything. It sounded like they were constructing an Ikea sectional and ordering Chinese take-away during the interview.
The noise gate leaves the microphone open while you're speaking and if the noises are bad enough, they go straight through. If you adjust the gate to kill everything (possible on some gates), you sound like a robot with no expression in your voice. I've never found a printed way to illustrate that, so you'll just have to take my word on it.
People rent studios for a reason. You walk in, do the show and go home. Badda Bing.
Koz