Video Assembly Duration
video-assembly-dur
Sets the display duration for an image segment in the assembled timeline, in seconds.
video-assembly-dur[N] accepts a float from 0.1 to 120. The default is 5.0 seconds. This parameter applies to image segments only — on video segments it is ignored with a warning.
Use this to control how long each still photo or illustration holds on screen in a slideshow assembly. Combine with video-assembly-motion[N] for a Ken Burns pan/zoom over the hold duration.