When we first wrote about the phenomenon of GIFs that people could “hear” last December, we said we couldn’t “hear” the GIF. But then this article came out with a larger version of the GIF, and, well, yes, it’s loud and clear.
Click the second link and “hear” (or not) for yourself. And do read the entire piece. Turns out the reason why one in five of us can hear silent images is that it is a common form of synaesthesia, “the weird sensory cross-over that leads some people to visualise noises or feel smells.”