// playground — experiment 04

Pulse Lab

Watch sound turn into motion. A noir chiptune demo beat — or your microphone — drives the same audio-reactive bars B3BOP builds in Blender with Geometry Nodes. Tune it, record the loop, or save its recipe for Blender (Blender add-on coming soon).

← Playground

0.00 s

Source

The demo beat is an original 7.5-second noir chiptune loop (128 BPM, D minor). The microphone only starts when you click it and your browser asks first — mic audio never leaves your browser: it is analysed on this device, never uploaded, never recorded, and never played back.

Layout — Bars

Tuning

Audio

Shape

Look

Colour (low bands)

Accent colour (high bands)

Bars fade from Colour to Accent across the spectrum and glow brighter the louder they get, like the Blender material B3B_SpectrumBar.

Export

Frame

Blender add-on coming soon. Save your recipe now: the add-on will rebuild it with the same Geometry Nodes group (B3B_LinearBars or B3B_RadialSpectrum), every Tuning slider in the Modifier tab, the demo beat already wired in, and a framed camera, in the same colours.

Recipe JSON