Audio or video file
Drag a file into the page. Audio drives the show; video can appear on the arena screens. The file is processed locally.
No timeline editing required
A music visualizer that understands the song.
Drop in media and get a complete audio-reactive show. The visualizer begins immediately, then locks to a deeper beat grid and section map as analysis completes.
Choose the source that fits the moment
YouTube link
The self-hosted bridge stages supported videos as same-origin media so picture and sound can feed the complete experience.
Live microphone
Use live tempo tracking for a room, instrument or DJ set. Microphone audio is analysed in the browser and is not monitored through the speakers.
Useful controls without editor clutter
Space toggles playback, arrow keys seek and change volume, and the on-screen timeline shows the track’s loudness and analysed sections. Director mode runs the cameras automatically; free-look mode lets you orbit the venue. Graphics quality can be automatic or manually fixed, while intensity and glow controls reshape the production without changing the musical cues.
What makes the visualizer musical?
Short-time spectral analysis separates frequency energy over time. An onset envelope highlights transients. Tempo estimation and dynamic-programming beat tracking turn those transients into a stable grid. Downbeat and structure analysis then organize beats into bars and larger sections. The concert system reads that timeline during playback so its changes remain synchronized.
That approach makes Prismatic Arena useful for listening sessions, streaming backgrounds, production inspiration and anyone curious about how a song’s dynamics might translate into a live show.
Open the visualizer