Final answer:
The Roll Trim tool adjusts the edit points between clips without changing the overall video length while the Ripple Trim tool alters the clip's length and shifts subsequent clips in the timeline, affecting the total video duration.
Step-by-step explanation:
The Roll Trim and Ripple Trim tools are both used in video editing software to modify the length and timing of clips in a sequence. The Roll Trim tool allows you to adjust the point where two clips meet without changing the overall length of the video. When you roll the trim point, it takes frames from one clip and gives them to the other, but the total duration of the two clips remains the same. This is useful for fine-tuning the edit points between clips while maintaining the sequence duration.
In contrast, the Ripple Trim tool changes the length of one clip and subsequently shifts all following clips in the timeline to compensate for the change. This means that when you use the Ripple Trim tool, the overall duration of the video will change. It's handy for making quick adjustments to a clip that need to be reflected across the entire timeline.