Wikipedia is arguably one of the most well-known brands in the world. Which means you’ve most likely seen its unfinished-jigsaw-puzzle-of-a-globe logo.

In true Wikipedia fashion, the four second audio clip was sourced from the community. The Wikimedia Foundation hosted a contest to find an audio logo for "projects when visual logos are not an ...

After an exhaustive search via “Sound of All Human Knowledge” contest, Wikimedia thinks it’s found a sound logo to use across branded content from the likes of Wikipedia.