This sound is from E N V O Y Short Film

"ENVOY" is a captivating sci-fi short film that takes place in a dystopian world where advanced alien beings intervene to restore peace on Earth. Directed by David Weinstein, this 2014 film explores profound themes of humanity, war, and redemption. Starring Elijah Allan-Blitz as the protagonist, who encounters an otherworldly machine envoy played by Paul Thomas Arnold. Their encounter unfolds in a heart-wrenching journey as they traverse war-torn landscapes. The film will surely keep you on the edge of your seat with its stunning visuals and emotional storytelling. If you're seeking a thought-provoking and visually stunning experience, "ENVOY" is a must-watch. You can immerse yourself further by experiencing the film's incredible sound design and score, which can be played and downloaded here.