Interrupting the proceedings?

If you've missed something as a court reporter, it's absolutely necessary to interrupt so that you can catch up and then move forward.

Yes. Because the court reporter is responsible for keeping an accurate record of everything that was said during a deposition, hearing, or trial, if you've missed something, someone isn't speaking clearly or loudly enough, it's important to make sure that you interrupt, slow things down, and get the record right.