each image was generated at Invalid Link Removed , and then i used the runway app for those 4,8,12, or 16-second video segments. (for that piece, i mostly used 4-second and 8-second renders.) i used VSDC to slow the renders, speed them up, make them play backwards, etc. i chained them all together in VSDC. in the video editing software, the audio shows much like DAWs show them (peeks and valleys) so making those short runway segments work was easy.
(@RustfeatherBass got me hip to the AI apps, but i'm not sure what video editor he used for his AI-based videos.)