This is a work-in-progress of using JAX to batch-render Yamaha DX7 presets. We also provide a script to parse .syx files and aggregate them into a single CSV.

The Faust Libraries have an implementation of the DX7, but it lacks several features. We have improved it in several ways such as adding an LFO, but our implementation (custom_dx7.lib) is imperfect, so please use this project with caution. Pull requests are welcome.

DX7-JAX uses DawDreamer to convert the Faust code to JAX, which can then be executed on either the CPU or GPU. We hope this project can be a useful starter for research involving Faust and JAX, not necessarily involving the DX7. DawDreamer has other JAX examples, which we encourage you to check out.

We mirror the DX7_AllTheWeb.zip (2023-08-08) from http://bobbyblues.recup.ch/yamaha_dx7/dx7_patches.html (saving them some bandwidth). Use this script to download it to the right location.

python download_patches.py

This will parse a limited amount of presets.

python parse_dx7.py --directory dx7_patches/DX7_AllTheWeb/Atari

This will parse all presets. You probably shouldn't do this because the later rendering output will be enormous.

python parse_dx7.py

If you run it on all of DX7_AllTheWeb, then 388,650 presets will be de-duplicated into 44,884.

Render the audio with default args (python dx7_render.py --help for help)

python dx7_render.py

Go to the Faust IDE and paste the content of custom_dx7.lib into the text editor. Then at the bottom, paste

process = dx7_algorithm(1) <: _, _;

This selects the 1st of the 32 DX7 algorithms. Enable "Poly Voices" on the left hand side. Four is a good number. Then press the play button towards the top of the screen and play around with your keyboard as the controller.

@software{Braun_DX7-JAX_2023,
    author = {Braun, David},
    month = nov,
    title = {{DX7-JAX}},
    url = {https://github.com/DBraun/DX7-JAX},
    version = {0.0.1},
    year = {2023}
}