Read more: Create Memes With White/Black Background And Words Wevideo Purchase PowerDirector 14 on their official website. Audio sync is where different videos are shown, but a single audio track is played without changing the context. This means you can add a bunch of videos and stitch them together and connect them through audio sync and also zoom in or zoom out a particular video. A multi-cam collage with over 100 cameras can be created with this editor.