This is how Stitches remixes. Two people filmed the same moment; press the button and the engine cuts it.

It lines the two cameras up on what they both saw and heard — five methods, four on the sound and one on the motion, voting; no timecode — then scores every half-second of both on audio energy, motion, visual difference and where the people are (YOLO), and cuts to whichever camera is winning. The buttons below are the engine's own settings.