What can I build in JDL?

When you craft a sound in JAMtime.ai's chat, you're really building an audio device. Effects pedals - distortion, fuzz, reverb, delay, modulation, you name it. Synths - leads, basses, pads, FM patches, ACID-style squelches. Whatever you can describe, the AI can build.

Here are two of them. Running live in your browser. Hit play.

A classic-rock distortion pedal

Chunky drive, wide stereo presence - the kind of thing you'd reach for on a rhythm guitar going into a mix.

Under the play row is the patch's recipe in JDL - the language the AI wrote to make that sound. You don't have to read it; it's just nice to know it's there if you ever want to peek under the hood.

An ACID-style bass synth

The same engine that just took audio in can also take MIDI in - so the same workflow works for synths too. This one's a 303-style squelch with the signature filter-sweep snarl. The engine drives a built-in walking bass line through it.

Same engine, same JDL grammar, different declared input. Pedals take audio. Synths take MIDI.

These run everywhere

The patch you just heard - the same JDL text in the panel - runs unchanged on your laptop, in Ableton or Garage Band as a plugin, in the browser you're using right onw! And (later this year) on the Omega FX1 pedal. Same C++ engine, same patch, same sound on every target. Patches travel in a way that VST presets and pedal firmware never have.

The AI does the writing

Your idea beomes the JDL file, and that patch is yours to keep.

Build your own synth — just say how you want it to work! vi1 is coming soon — the same chat-driven workflow, pointed at the synth side of the engine.

If you want to see that translation in motion, the two walkthrough posts on this blog are real conversations end-to-end: A Heavy Metal Patch on the First Try (one prompt, one keeper) and Making a Shimmer Pad (a fifteen-minute build from scratch). Both end with a patch the producer fully owns.

That's the workflow. AI as a translator. You stay in the driver's seat.

If you're interested in the JDL spec, read more here: https://jeffsaudiomachines.com/jdl.