Each  of  the  two  Voyager  probes  carry  the  'Sounds  of  Earth' record.  The  12  inch  copper  disk  contains  greetings  from  Earth people in sixty languages, samples of music from different cultures and eras, and natural sounds of surf, wind and thunder, birds, whales, and other animals.  The record also contains electronic information that can be converted into diagrams, pictures, and printed words.
The messages on the record were designed to enable possible extraterrestrial civilizations who might intercept the spacecraft millions of years hence to put together some picture of 20th century Earth and its inhabitants.