{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/Tatsh/resonance/blob/2d8e1271fcd85f61028253262e3642291c5577e0/LICENSE.txt"
  ],
  "category": "reconstruction-cases",
  "class": "game",
  "description_en": "FreQuency reconstructs source and runtime components for the 2001 PlayStation 2 rhythm game. Its build uses ps2dev compilers for the Emotion Engine and IOP, reconstructed Sony library routines, and an optional user-supplied disc image to create a Mode 2 CD image with rebuilt executable and EZMIDI.IRX files.",
  "description_zh": "FreQuency 重建了 2001 年 PlayStation 2 同名节奏游戏的源码和运行组件。构建流程使用 ps2dev 的 Emotion Engine 与 IOP 编译器、重建的 Sony 库例程，并可读取用户自备的光盘镜像，生成包含重建可执行文件和 EZMIDI.IRX 的 Mode 2 CD 镜像。",
  "entry_url": "https://awesomerea.org/resources/frequency-ps2-reconstruction-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/frequency-ps2-reconstruction-case/",
  "evidence_url": "https://github.com/Tatsh/resonance/blob/2d8e1271fcd85f61028253262e3642291c5577e0/README.md",
  "group": "cases",
  "id": "frequency-ps2-reconstruction-case",
  "json_url": "https://awesomerea.org/resources/frequency-ps2-reconstruction-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/frequency-ps2-reconstruction-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/frequency-ps2-reconstruction-case/index.md",
  "name": "FreQuency: reconstructed PlayStation 2 source and runtime",
  "name_zh": "FreQuency：PlayStation 2 游戏源码与运行环境重建",
  "reconstruction_method": "other",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "prerequisites",
    "license"
  ],
  "requirements": [
    "Building requires ps2dev cross compilers for the Emotion Engine and IOP, their runtimes and the IRX fixup tool.",
    "A user-owned FreQuency disc image or disc root is required to build the replacement CD image.",
    "A disc-root copy needs the original disc's first 12 sectors for its boot logo when console booting is required.",
    "The project's own code is MIT licensed; bundled third-party code retains its own licenses."
  ],
  "requirements_zh": [
    "构建需要 ps2dev 的 Emotion Engine 和 IOP 交叉编译器、对应运行库及 IRX 修正工具。",
    "生成替换光盘镜像需要用户自备 FreQuency 光盘镜像或光盘根目录。",
    "若使用光盘根目录文件并需要在主机上启动，还需原盘前 12 个扇区中的启动标识。",
    "项目自有代码采用 MIT 许可证；收录的第三方代码保留各自的许可证。"
  ],
  "targets": [
    "game"
  ],
  "url": "https://github.com/Tatsh/resonance",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}