Today's Hard|Forum Post
Today's Hard|Forum Post

Wednesday March 25, 2015

How GPU Technology Helps (Prime) Time Fly

Add the ability to manipulate time to the list of advances made possible by GPUs. Cinnafilm, a small engineering-driven firm in Albuquerque, N.M., sells a package of hardware and software powered by NVIDIA’s Tesla GPUs that allows video to be shortened or lengthened by as much as 10 percent, in real time, without the need for any editing. "It completely re-samples video to a precise length without changing anything," Lance Maurer, Cinnafilm’s CEO and founder, told a roomful of attendees during a session at the GPU Technology Conference.

This is no mere fast-forward button. Play video faster, even just a little, and actor’s voices rise in pitch. Motion gets blurred. And closed captioning flashes by too fast to read. Without a way to subtly tweak video files to compensate, viewers will complain. The solution, dubbed Tachyon Wormhole آ– in a nod to Maurer’s background as an astrophysicist آ– is helping TV broadcasters eke out additional revenue by shortening shows, making room for more advertisements. Similarly, if a broadcaster has to air a 23-minute video in a 22-minute slot, the discrepancy can be addressed lickety-split.