Slowly but surely, YouTube Premium is adding new perks for paying subscribers -- here are the latest features currently in the experimental phase.

YouTube Premium users can now get access to high-quality audio for music videos and better playback controls, including speeds up to 4x.

YouTube Premium subscribers can now step into the lab and enjoy a slate of new experimental features. And the good news is that everything is free to enjoy. Instead of just a single experiment, YouTube has announced you can opt into multiple features at once.

YouTube Premium users are receiving new experimental features, including enhanced 256kbps audio for music videos, faster playback speeds on mobile, and the ability to skip directly to engaging parts of web videos.

Google is making a couple of new experimental features available for testing for YouTube Premium users today, including high-quality audio (256kbps) for music videos.