Is ill Visuals free to use?

Yes. The free demo includes 100+ shaders, 3 layers, and all core features. Output includes a small watermark. Upgrade to Pro to remove the watermark and unlock unlimited layers, VJ mode, MIDI, and all premium effects.

Do I need coding experience?

No. Everything is visual and interactive. Pick shaders from the library, drag effects onto layers, and adjust parameters with sliders. AI generation lets you describe what you want in plain English.

What projectors work with ill Visuals?

Any projector that connects to your computer via HDMI, DisplayPort, or USB-C. ill Visuals outputs to any display your operating system recognizes, including multiple projectors simultaneously.

Can I use it for live shows?

Absolutely. ill Visuals was built for live performance. The VJ clip launcher, Performer keyboard mode, beat sequencer, MIDI mapping, and wireless mobile control are all designed for real-time use on stage.

Does it work with MIDI controllers?

Yes. Any MIDI controller works out of the box. Use learn mode to map any knob, fader, button, or pad to any parameter in the software.

Is there a Mac version?

Yes. ill Visuals runs on both Windows 10+ and macOS 12+. Download the installer for your platform from the download page.

What file formats are supported?

Videos: MP4, MOV, WebM, GIF. Images: PNG, JPG, WebP. 3D models: GLTF, GLB, FBX. Point clouds: PLY, .splat. Vector: SVG. Shaders: ISF/GLSL.

tutorial9 min read

Audio-Reactive Visuals — How to Sync Visuals to Music

Complete guide to creating audio-reactive visuals for live music, DJ sets, and installations. Frequency analysis, beat detection, and LFO modulation with ill Visuals.

Published March 20, 2026Updated March 28, 2026

Audio-Reactive Visuals Guide

Audio-reactive visuals respond to music in real time — pulsing, morphing, and evolving with every beat, melody, and bass drop. Here's how to create them with ill Visuals.

How Audio Reactivity Works

ill Visuals analyzes incoming audio across 6 frequency bands:

Sub Bass (20-60 Hz) — Kick drums, sub bass

Bass (60-250 Hz) — Bass guitar, bass synths

Low Mid (250-500 Hz) — Warmth, body of instruments

Mid (500-2000 Hz) — Vocals, guitar, snare

High Mid (2-6 kHz) — Presence, clarity

High (6-20 kHz) — Cymbals, air, brightness

Each band outputs an amplitude value that can drive any visual parameter.

Setting Up Audio Input

Connect an audio source (line-in, microphone, or system audio)

Open ill Visuals' audio settings

Select your input device

Enable audio analysis — you'll see the frequency bands visualized

Mapping Audio to Parameters

Direct Mapping

Map a frequency band directly to a parameter:

Sub bass → shader zoom or scale

Kick → flash or strobe intensity

Vocals → color hue shift

High frequencies → particle speed or effect intensity

Beat Detection

ill Visuals detects beats automatically. Use beat triggers to:

Switch VJ clips on beat

Trigger effect bursts

Advance animation sequences

Pulse layer opacity

LFO Modulation

Combine audio with LFO (Low Frequency Oscillator) for complex modulation:

Sine wave on color + audio on intensity = breathing, responsive visuals

Triangle wave on rotation + beat trigger on scale = rhythmic, evolving patterns

Best Practices

Less is more — Map 3-5 parameters, not everything

Use smoothing — Raw audio is jittery; smooth values for fluid motion

Layer responses — Different layers react to different frequency bands

Save presets — Build a library of audio-reactive looks

Test with the actual music — Different genres need different mappings

ill Visuals Audio Features

6-band frequency analysis with adjustable ranges

Automatic beat detection with BPM display

LFO modulation (sine, triangle, square, sawtooth)

Per-parameter audio mapping with smoothing control

Audio-reactive effects on any layer

Works with any audio input including system audio capture

Download ill Visuals to start creating audio-reactive visuals.

Frequently Asked Questions

How do you make visuals react to music?

Use VJ software like ill Visuals that analyzes audio input across frequency bands. Map bass frequencies to scale/zoom, mid frequencies to color changes, and use beat detection to trigger visual events. ill Visuals supports 6-band analysis with automatic beat detection.

What software makes audio-reactive visuals?

ill Visuals creates audio-reactive visuals with 6-band frequency analysis, beat detection, and LFO modulation. Other options include Resolume, TouchDesigner, and Processing. ill Visuals is the easiest to set up with its built-in audio mapping.