The Annotate Audio plugin enhances audio playback within Obsidian by allowing users to interact with audio files directly in their notes. Users can annotate specific timestamps with comments, making it easy to jump to important sections during review. Playback controls such as speed, volume, looping, and autoplay offer a customizable listening experience, while sticky controls ensure accessibility during scrolling. Comments can be edited or removed easily, and layouts are configurable to match different preferences.