What if your
lights could listen?

JENS captures live audio, runs a real-time DSP pipeline, and outputs the result as OSC and DMX, the standard protocols used by professional lighting desks, VJ software, and creative tools like TouchDesigner or Max/MSP, or directly as DMX over sACN or Art-Net. No coding required. No plugins to install. Just sound in, OSC and DMX out.

Download JENS → Free demo · Full license CHF 23
Desktop only

JENS is a macOS & Windows application. Visit jensapp.ch on your desktop to download.

Signal flow

Sound in. OSC and DMX out.

A clear, deterministic sound to light and sound to OSC path, from microphone or interface input to your lighting desk or visual tool. Combine values with Math and send the result as OSC or directly as DMX over sACN or Art-Net.

Inputs Processing Math Outputs A.01 Audio devices multi-device Device A ch 1 · ch 2 Device B ch 1 · ch 2 Device n ch n → AUDIO A.02 DMX in sACN · Art-Net A.03 MIDI P.01 Track audio-reactive · full DSP gain · filter · smooth · gate · curve parameters via DMX or MIDI (patch mode) P.02 Analyzer onset · kick · LUFS · pitch/key parameters via DMX or MIDI (patch mode) P.03 Sub manual fader · MIDI/DMX bridge M.01 Math combine any items + − × ÷ min · max limit · CLIP invert top to bottom → RESULT optional · every item can also output directly O.01 OSC / UDP multi-destination · float values /audio/level 192.168.1.10:8000 → /audio/kick 192.168.1.20:9000 → /math/mix 10.0.5.40:7000 → /midi/cc1 10.0.5.40:7100 → /sub/master n destinations → → MULTI-OUT O.02 DMX out sACN · Art-Net · 8/16-bit · HTP ch 1 · 8-bit sACN univ. 1 → ch 12 · 16-bit Art-Net 0:0:2 → ch n n universes → → DMX-OUT
signal control · parameters
Quick start

Up and running in five minutes.

Five short steps. From a fresh install to a track sending OSC.

1
Add audio input
Settings → Audio → Add Connection. Pick your device.
~30 sec
2
Add OSC output
Settings → OSC → Add Connection. Set host and port.
~30 sec
3
Create a track
Pick audio and OSC connections, set an address like /audio/level and enable it.
~1 min
4
Make some noise
Watch the level meter move, the FFT respond, and the output value update in real time.
~30 sec
5
Fine-tune
Adjust gain, pick a response curve, dial in smoothing, set the gate. Save as a show file.
~2 min
Read the docs →
Use Cases

From theater
to virtual production.

Anywhere a creative tool speaks OSC or DMX, JENS can drive it from audio.

Concerts & live music

Frequency-isolated tracks for kick, snare, vocals, and overall energy. Route to your lighting desk via OSC or send DMX straight over sACN or Art-Net.

Art installations

Live sound drives generative visuals or kinetic lighting. JENS runs quietly in the background, turning environmental audio into continuous control data.

VJ sets

Feed into Resolume or TouchDesigner. Audio-reactive tracks for automatic layers, manual subs for intensity and color, controlled by DMX and MIDI for real-time tweaks.

Theater & dance

Gate and limiter for precise triggers. Lights only respond above a threshold. Smoothing keeps transitions elegant, not jarring.

Broadcast & streaming

Drive ambient background visuals straight from your audio mix.

Creative coding

Bridge audio to any creative tool via OSC. Max/MSP, Processing, openFrameworks. If it receives OSC, JENS can drive it.

Download

Start turning sound
into light.

Try it for free. In the demo the output freezes briefly every few seconds, but you can test every feature at no cost.

This tool is built with AI
macOS 12 Monterey or newer · universal
↓
Windows 10 (64-bit) or newer
↓
Demo Show File JENS_DEMO_1.4.0.jens · open in JENS to explore a ready-made setup
↓

The download runs as a free demo. Activate the full version any time with a license from buy.jensapp.ch. Licenses are hardware-bound and work offline.

Older Windows PC without WebView2? Use the installer with WebView2 included.