Taram

I finally was able to synch an AI voice with the text scrolling up in an animated space title through sheer, dumb luck. So it is easier next time that I use the animated space title, in the edit section, what is the difference between animation duration and clip duration? I know that one determines how fast or slow the text scrolls upward while the other determines how long the clip lasts on a timeline so the entire scroll of text is seen. I just cannot determine which is which. Thank you!