3D Audio Visualizer
3D Audio Visualizer – Let the Music Shape the Visuals
An interactive, audio-reactive 3D experience built using Three.js, Web Audio API, and SimplexNoise.js.
The visuals pulse and warp in real-time with the music — transforming frequency into fluid, glowing geometry.
Context
Music isn’t just to be heard — it’s to be seen.
This project was a creative experiment: to turn sound waves into light and movement using math, physics, and Three.js.
It began as a weekend deep-dive into Web Audio + 3D rendering and ended as a hypnotic, browser-based dance of frequencies.
Key Features & Design
- Live Audio Input – Sound is captured and analyzed via Web Audio API.
- 3D Sphere Mesh – Reacts dynamically using vertex displacement.
- Simplex Noise Deformation – Adds fluid, natural chaos to visuals.
- Beat Sensitivity – Music spikes & bass hits morph the shape in real-time.
- Plug & Play UX – Open the page, press play — no extra config needed.
Each frame renders a new shape — audio frequency directly controls mesh distortion, giving a live concert in every refresh.
Hackathon Impact
Although not for a hackathon, this was a 48-hour creative sprint. It taught me how code can be expressive, emotional, and powerful — all through sound visualization.
Tech Stack
Three.js, Web Audio API, SimplexNoise.js, HTML, CSS, JavaScript
Lessons & Takeaways
- Math + Code = Visual Magic – Noise, waves, and shaders can hypnotize.
- Timeboxing works – 48 hours forced focus and creativity.
- Creative code ≠ toy projects – It sharpens both logic and emotion.
- Noise algorithms are beautiful – Simplex outperforms Perlin for fluid visuals.
This wasn’t just a visualizer —
it was a weekend dive into waveform physics, creative code, and the magic of frequency-driven forms.