Real field recordings sourced from Wikimedia Commons, processed into seamless 96-second loops. All licenses verified via the Commons API on download. 真录音素材来自 Wikimedia Commons,经 API 逐件验证许可,处理为 96 秒无缝循环。
Scenes without a recording are generated in real time by Web Audio synthesis. 未配真录音的场景为浏览器实时合成。