mrs/packages/renderer-core/src/audio/AudioVisualizer.js includes AudioAnalyzer with
loadMicrophone() / loadAudio() using the Web Audio API.
Not claimed in the examples suite:
- No live mic binding in
web-demo.html - No committed audio assets or reactive rotation demo
The governed browser host also does not currently ship a mic UI. Treat audio-reactive 4D as an available library module, not a showcase feature, until a dedicated demo is wired and tested.