How much do I like a cappella? I like it so much I own Pitch Perfect 3 (THREE!) on Blu-ray. So yeah, I obviously I really enjoy people making instrument noises with their mouths. But typically that ...

Although movie and game producers can now create computer-animated images of just about anything, the sounds made by those onscreen items still typically consist of recordings of real-world objects.

MIT researchers have developed a computer system that independently adds realistic sounds to silent videos. Although the technology is nascent, it’s a step toward automating sound effects for movies.