The long neglected and often forgotten Star Trek: The Animated Series was an attempt to revive the franchise during the middle of the 1970s. It's comically awful, but it did inspire YouTuber Gazelle Automations to create a brief Next Generation episode using original sound and the 70s animation style. Now it's back with a fresh episode of Voyager using sound from the bizarre story "Threshold."
Critic Richard Eisenbeis comments that Gazelle Automations chose to animate the worst Star Trek episode ever made. I'd dispute that assertion, as "Code of Honor" should probably get slot of "worst episode". But "Threshold" is certainly within the bottom twenty within the franchise. So it's proper that an awful story gets awful animation.