YouTube has a new dev feature called Audioswap that lets you swap out your sound from your videos to tracks from copyrighted artists.
Looking for music for your video? We’ve made arrangements with artists and record labels so that you can add their songs to your YouTube videos. You get a cool soundtrack, the artists get attribution on your video, and everyone wins! We’ll be adding more artists and songs as the feature develops, so check back for your favorite bands and singers.
Seems like a neat idea. The problems is it swaps out your entire sound, everything. So it’s really only good if you have a video that has no sound or a soundtrack on it already.
I tried it on one of my videos and it works very nicely. The sound quality is good.