(Screenshot by Michelle Starr/CNET Australia)
The inaudible cries of bats have been digitally brought into an audible frequency — and arranged into a performance of the Batman theme music.
Given that Bruce Wayne took on the mantle of the bat because it was the scariest thing he could think of thanks to his own phobia, we're not entirely sure he'd be 100 per cent comfortable with this: three chaps from Germany and Belgium have arranged bat vocalisations into the Batman theme song.
The project was based on an idea by yawn scholar Wolter Seuntjens. Taking audio recordings of bat cries provided by bat conservation group Interessengemeinschaft Fledermausschutz and Inken Karst, the frequency of the sounds was reduced so that they could be heard by human ears.
St Rumbold's Cathedral carilloneur Ulrich Seidel then sampled and arranged the sounds into a recording of the Batman theme song, set to visuals cut from the 1966 film and 1990s animated series, cut with images of bats from National Geographic TV.
It's sort of eerily catchy — we imagine any superstitious, cowardly villain would tremble in his boots to hear it. And, as icing on the bat cake, it brought a rare funny from the YouTube comments:
We're also hoping for Spider-man as performed by spies, and Wonder Woman as performed by ... the number ... one. Yeah, we got nothing.