Every sound has a source

The station uses upstream Strudel and Superdough synthesis. Sample layers may use the two internal delivery fixtures below. These procedural recordings contain only mathematical triangle waves and seeded noise, with no external recordings or performances.

Open Radio dedicates these project-generated audio fixtures to the public domain under CC0 1.0. The dedication applies to these recordings, separately from the AGPL software license.

Reviewed September 15, 2026: the production recipes reproduce the original A4 PCM hashes exactly. They are modest delivery fixtures, not a curated sample library.

Recipe: domain/audio-assets/internal-fixtures.ts. Original recipe and dedication: experiments/a4-catalogue/generate.mjs and CC0.md in the project source.