Third-party notices
CHECK is made by SpecHaus. It includes the open-source software and models below, each under its own licence. Those licences govern each component and take priority over SpecHaus's terms for that component. Naming a project or company here does not mean it endorses SpecHaus.
The full licence texts are in the licenses folder next to this file. The exact list of Python packages in this build, with versions, is in packages.json.
Models (downloaded on first use of Logger)
NVIDIA Parakeet TDT 0.6B v3 (speech to text), by NVIDIA, is licensed under Creative Commons Attribution 4.0 International (licenses/CC-BY-4.0.txt, https://creativecommons.org/licenses/by/4.0/). Original: https://huggingface.co/nvidia/parakeet-tdt-0.6b-v3.
- On Mac: the MLX conversion by mlx-community, https://huggingface.co/mlx-community/parakeet-tdt-0.6b-v3.
- On Windows and other computers: the ONNX conversion by Ilya Stupakov, https://huggingface.co/istupakov/parakeet-tdt-0.6b-v3-onnx.
The conversions change the model's format; SpecHaus makes no further changes to the weights. The model is provided without warranties under its licence.
Qwen3-VL-4B-Instruct (shot descriptions), by the Qwen team at Alibaba, under the Apache License 2.0 (licenses/Apache-2.0.txt). Original: https://huggingface.co/Qwen/Qwen3-VL-4B-Instruct. On Mac: the 4-bit MLX conversion by mlx-community, https://huggingface.co/mlx-community/Qwen3-VL-4B-Instruct-4bit. SpecHaus makes no further changes to the weights.
Silero VAD (finds speech in long audio, Windows and other computers), by the Silero Team, under the MIT License (licenses/silero-vad.txt). ONNX files from https://huggingface.co/istupakov/silero-vad-onnx.
FFmpeg
This software uses code of FFmpeg (https://ffmpeg.org), licensed under the LGPL-2.1-or-later (licenses/LGPL-2.1.txt). The included ffmpeg and ffprobe are separate programs, built without any GPL or non-free parts (--disable-gpl --disable-nonfree):
- Mac: built by SpecHaus from the unmodified FFmpeg 9.0.2 release source, https://ffmpeg.org/releases/ffmpeg-9.0.2.tar.xz. The same source file is offered beside each release download.
- Windows: the LGPL build of FFmpeg 9.0 by BtbN, https://github.com/BtbN/FFmpeg-Builds, with its source available there.
You may replace these programs with your own FFmpeg build.
Libraries and runtime
| Component | Licence | Text |
|---|---|---|
| Python (CPython 3.12) | PSF License 2.0 | licenses/Python.txt |
| PyInstaller bootloader | GPL-2.0-or-later with the bootloader exception (lets it run non-GPL apps) | licenses/PyInstaller.txt |
| pywebview | BSD-3-Clause | licenses/pywebview.txt |
| bottle (pywebview) | MIT | licenses/bottle.txt |
| pythonnet, clr-loader (Windows) | MIT | licenses/pythonnet.txt, licenses/clr-loader.txt |
| PyObjC (Mac) | MIT | licenses/PyObjC-core.txt |
| tzdata | Apache-2.0 (IANA tz data: public domain) | licenses/tzdata.txt, licenses/IANA-tz.txt |
| tzlocal | MIT | licenses/tzlocal.txt |
| NumPy | BSD-3-Clause | licenses/numpy.txt |
| Pillow | MIT-CMU | licenses/Pillow.txt |
| OpenCV (opencv-python, Mac) | the wrapper: MIT; OpenCV: Apache-2.0; its bundled FFmpeg: LGPL-2.1 | licenses/opencv-python.txt, licenses/Apache-2.0.txt, licenses/LGPL-2.1.txt |
| MLX, mlx-vlm (Mac) | MIT | licenses/mlx.txt, licenses/mlx-vlm.txt |
| parakeet-mlx (Mac) | Apache-2.0 | licenses/Apache-2.0.txt |
| transformers, tokenizers, huggingface_hub (Mac) | Apache-2.0 | licenses/Apache-2.0.txt |
| llguidance (Mac) | MIT | licenses/llguidance.txt |
| miniaudio (Mac) | MIT | licenses/miniaudio.txt |
| onnx-asr, ONNX Runtime (Windows) | MIT | licenses/onnx-asr.txt, licenses/onnxruntime.txt |
llama.cpp, bundled llama-server (Windows Look) | MIT | licenses/MIT.txt |
| typing-extensions | PSF License 2.0 | licenses/typing-extensions.txt |
Other packages pulled in by these, with their versions and licences, are listed in packages.json, generated from this build.