The Golden Records that were attached to the Voyager spacecraft were intended as a way of communicating with any extraterrestrial intelligence that might encounter them. The records contain a variety of images, sounds, and information about Earth and humanity, encoded in analog form.
If an alien civilization were to encounter the Voyager spacecraft and retrieve the Golden Records, they would need to have some way of playing the records and decoding the information. The records were designed to be played on a phonograph, which is a type of turntable that uses a stylus to read analog grooves in a vinyl disc.
Assuming that an alien civilization has developed similar technology and has some knowledge of sound and image processing, they would likely be able to extract information from the Golden Records. The records contain a variety of information in different formats, including images, music, spoken greetings in many languages, and even brainwave patterns of a human being.
Source:
https://voyager.jpl.nasa.gov/golden-record/
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