This week I focused on better translating the Shepard’s tone auditive mechanics to a visual element, in this case speed. I recorded a much longer video and increased the variant between each video, as well as changing an export setting on premiere pro.
Original video length: 7:57 min
Difference between videos of 50% (compared to 30% in 1st prototype)
Export settings: frame blending
Layer 1: Video Opacity 33%
Layer 2: Video Opacity 50 %
Layer 3: Video Opacity 100%
Sv = 100 * ( St / Si )
With Sv the speed change (speed variant) I apply to reach my target,
Si the initial speed percentage from the original
St the target speed percentage from the original
Let’s call each video A, B and C, with A being the fastest and C the slowest initial version.
SiA = 150 % and StA = 50%.
SvA= 100 * ( 50 / 150)
= 33%.
I will reduce the fastest video’s speed by 33% over x period of time.
SiB = 100% and StB = 150%.
SvB = 100 * (150 / 100)
= 150 %.
I will increase the mid video’s speed by 150% over x period of time.
SiC = 50% and StC = 100%
SvC = 100 * ( 100 / 50 )
= 200 %.
I will increase the slowest video’s speed by 200% over x period of time.
First is an example of the long version of the video. Because of its length you start to feel the acceleration much later into the video. I actually enjoy that effect because it sneaks up on you. I showed it to some peers and they agreed because as they first thought they understood the effect of the video, all this endless content almost blending into a mush of information, they felt something different throughout the video and realized that it was accelerating.
This next version I’m uploading is a shorter version of the same video, overlaid with the Shepard’s tone sound so you can better visualize them together:
