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Legal Notices & Acknowledgements

Legal Compliance

Author Authorization

September 8, 2025:

  • Author agreed to MIT license development
  • Author has no objection to studying foobar2000 DR Meter
  • Provided technical specification document for DR measurement
  • Specification: Measuring DR ENv3 (Official PDF)

Special thanks to the original author for support and understanding!

Implementation Approach

  • Completely rewritten in Rust (original in C++)
  • Independent modular design and code structure
  • Original implementation based on mathematical formulas
  • Algorithm verified through input/output comparison

AI Collaboration

  • Thanks to Anthropic Claude 4.5 models (Sonnet / Haiku) for implementing the majority of the codebase
  • Thanks to OpenAI GPT-5 and Codex models for contributing additional code and providing the bulk of reviews & refinements

Reverse Engineering Legality

Based on legal precedents, the following are generally legal:

  • Reverse analysis for interoperability
  • Understanding algorithms for independent implementation
  • Technical research using legal tools

This project strictly avoids:

  • Direct copying or use of original source code
  • Trademark or brand infringement
  • Malicious commercial competition

Third-Party Notices & Licenses

The binary distribution of this tool includes third-party components under their respective licenses.

songbird — ISC License


Disclaimer

This project is for technical research and educational purposes only. All reverse engineering activities comply with relevant laws and regulations. For legal questions, please consult a professional lawyer.