The parameter-side picture of a stereo image: an L-R field with a pan cursor the host can animate from an LFO phase, the width parameter drawn as a spread around it, mid/side balance bars, and a correlation meter whose lower half is tinted because correlation below zero is the mono-compatibility danger zone. Takes precomputed values, a live analyser pair, or a getStereoData callback. Pairs with lissajous-scope, which is the signal-side view of the same signal β this one is not a goniometer and does not try to be.
pnpm dlx shadcn@latest add "https://pluginui.com/r/core-stereo-field.json"