Truedat - Music Mood Extractor
Copyright (c) 2026 Halrad LLC

## truedat.exe - MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

## System.Text.Json (Bundled)

Copyright (c) .NET Foundation and Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

## Essentia (Dependency)

Truedat uses the Essentia tool essentia_streaming_extractor_music.exe as an
external dependency. This repository includes build scripts for custom x64
Essentia builds in essentia-build/. Essentia is licensed under AGPL-3.0 by the
Music Technology Group, Universitat Pompeu Fabra.

    Essentia
    Copyright (c) Music Technology Group, Universitat Pompeu Fabra
    https://essentia.upf.edu/
    Licensed under AGPL-3.0

Source: https://github.com/MTG/essentia
License: https://www.gnu.org/licenses/agpl-3.0.html
Commercial licensing: https://essentia.upf.edu/licensing_information.html

If you use Essentia in academic work, please cite:

    Bogdanov, D., Wack N., Gómez E., Gulati S., Herrera P., Mayor O., et al. (2013).
    ESSENTIA: an Audio Analysis Library for Music Information Retrieval.
    International Society for Music Information Retrieval Conference (ISMIR'13).

## FFmpeg (Optional Dependency)

Truedat can optionally use FFmpeg (ffmpeg.exe, ffprobe.exe) for multi-channel
audio downmixing and audio stream probing (--details mode). FFmpeg is a
separate download, not built or distributed by this project.

    FFmpeg
    Copyright (c) 2000-2026 the FFmpeg developers
    https://ffmpeg.org/
    Licensed under GPL-3.0+ (when built with --enable-gpl)

Download: https://www.gyan.dev/ffmpeg/builds/
Source: https://ffmpeg.org/
License: https://www.gnu.org/licenses/gpl-3.0.html
