Sonic Garbage is a project built by Daniel Raffel, a former Google product lead and startup founder, which finds random sound clips from YouTube videos and allows you to listen and download them. Because of the randomness, you could get anything from dialogue to actual music or just pure silence.
Raffel says the idea came from a tweet, followed by someone’s web prototype of the concept, which inspired him to make a workable version himself. It’s not perfect—I’ve tried it and it intermittently gives server errors—but he explains why this happens in his blog post.
As soon as I saw this, I had to put it on the site and I think people looking for more unique samples could add this to their sampling tool arsenal.