This sound is from Flatliners (1990)

"Flatliners" is a thrilling psychological horror movie released in 1990. Directed by Joel Schumacher, it features an outstanding ensemble cast, including Kiefer Sutherland, Julia Roberts, Kevin Bacon, and William Baldwin. The plot follows a group of medical students experimenting with the afterlife, deliberately inducing death to explore what lies beyond. As they face terrifying consequences, they unravel dark secrets from their past. With its intense storyline and stellar performances, "Flatliners" continues to captivate audiences. If you're interested in experiencing the eerie sounds of this film, you can play and download them here.