In the well-known science fiction novel Hitchhiker’s Guide to the Galaxy, the Earth is blown apart to make way for a space freeway. When the space demolition team notified the earthlings of their upcoming doom, they use an advanced sound amplifying technology that turned every flat surface on earth into a sounding board, allowing them to broadcast to every human simultaneously.
This is the OrigAudio Universal Vibration Speaker. It claims to “turn ANY object into a speaker.” Here’s Five Gallon Correspondent Jeremy Cook testing it out on a 5 gallon bucket.
For a less space-age way to use a bucket as a speaker system, check out these bicycle based bucket broadcasters. These were put together for a “sound swarm” which uses bicycles to blast music, propaganda, or wildlife noises throughout a city.
And finally, the most archaic way to make a bucket amplifier is by yelling straight into it. Even kids can figure that one out.