The word “take” often indicates movement away from the 'speaker', while “bring” indicates movement toward the 'speaker'.
She was invited to be a 'guest speaker' [=to give a speech] at the conference.
Senator Williams was the 'keynote speaker' at the convention.
(..) Where do you think? Back at the headquarters. Go all the way back there to get to town. - Come on. - All right. It'll work. - Maybe it's the speakers. - It's not. I've done this times. - You've done this before? - Yes. Don't worry. - When was the last time? - I've never done this before. (..)1976 Taxi Driver