Burt is a synthesizer based on a traditional subtractive synthesis chain but takes a unique approach by adding distortion and signal exaggeration at every stage of the signal path. Starting with a simple waveform like a sine wave, the sound can transform dramatically, often making the difference between waveforms like saw or square subtle or indistinguishable. This dynamic processing ensures that users who enjoy distortion will find a rich palette of aggressive and textured tones.

The latest update, version 2.0, introduces several enhancements that improve both sound quality and usability. A new limiter protects ears and monitors by controlling output levels, while a Fake Stereo effect adds spatial depth similar to popular stereo imaging tools. Users can now choose between two distinct trigger modes for the voltage-controlled amplifier (VCA) and voltage-controlled filter (VCF), providing greater control over sound articulation and modulation. Numerous bug fixes have also been implemented to ensure a smoother experience.

Burt is available in a free version and a donation-supported version. The donation version includes all free features plus additional modulation capabilities, such as controlling both LFO amount and speed via the modulation wheel. It also offers five extra distortion algorithms, expanding creative possibilities for sound design. This flexibility makes Burt a compelling choice for producers seeking a gritty, characterful synthesizer with extensive modulation options.