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Arecibo Signal Generator

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choose image
Arecibo
use negative
bit position
sound type
Square
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The Arecibo message was a signal emitted through a radio telescope in 1974. It was transmitted as an exercise to show technological advances of humanity and how difficult communication with other civilizations would be. This Demonstration lets you:
• view the representation of the signal,
• hear how the signal would sound if transformed into sound waves, and
• create other messages compatible with the structure of the Arecibo message.
Open up and slow down the "bit position" slider to about half the original speed, then press the play button.
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