Cutroom
Third-party licences
Cutroom is free, closed-source software from Altivox Limited. It's built on open-source components, listed here with their licences. Thank you to everyone who made them.
Cutroom itself
| Component | Used for | Licence |
|---|---|---|
| JUCE | The application framework | Used under the JUCE licence (EULA), Starter tier; not under the AGPLv3 |
| LAME 3.100 | MP3 encoding | GNU LGPL version 2 · licence · source code as used in Cutroom (unmodified LAME 3.100 files plus our build settings); upstream at lame.sourceforge.io. Since Cutroom 0.4 it ships as a separate library you can replace with your own build of LAME: libmp3lame.dylib in Cutroom.app/Contents/Frameworks on a Mac (re-sign the app after replacing it), mp3lame.dll beside Cutroom.exe on Windows. |
| FLAC | Reading and writing FLAC | BSD-style · licence |
| Ogg Vorbis | Reading Ogg files | BSD-style · licence |
| zlib | Compression | zlib licence · licence |
| libpng | Images | PNG Reference Library licence · licence |
| IJG JPEG library | Images | This software is based in part on the work of the Independent JPEG Group. |
| HarfBuzz | Text shaping | "Old MIT" licence · licence |
| SheenBidi | Right-to-left text | Apache 2.0 · licence |
| VST3 SDK | Hosting VST3 plugins | MIT · licence · VST is a registered trademark of Steinberg Media Technologies GmbH |
| Chakra Petch | The Cutroom wordmark font | SIL Open Font License 1.1 · licence |
Auto Edit
Auto Edit runs in helper programs inside Cutroom, which use:
| Component | Used for | Licence |
|---|---|---|
| qwen3-asr.cpp | Running the speech and timing models | MIT · licence |
| whisper.cpp and ggml | The second listen, and the engine both run on | MIT · licence |
| sherpa-onnx | Telling speakers apart | Apache 2.0 · licence |
| ONNX Runtime | Used by sherpa-onnx | MIT · licence |
The speech models download from altivox.co.uk the first time you use Auto Edit. They are the authors' published models, converted to the format the helpers read:
| Model | Author | Licence |
|---|---|---|
| Qwen3-ASR 0.6B | Qwen team, Alibaba Cloud | Apache 2.0 · licence |
| Qwen3-ForcedAligner 0.6B | Qwen team, Alibaba Cloud | Apache 2.0 · licence |
| Whisper base.en | OpenAI | MIT · licence |
| pyannote segmentation 3.0 | pyannote (CNRS) | MIT · licence |
| 3D-Speaker CAM++ | 3D-Speaker, Alibaba | Apache 2.0 · licence |
Clean Up
Since Cutroom 0.6, Clean Up runs in a helper program inside Cutroom, with its model built in:
| Component | Used for | Licence |
|---|---|---|
| DeepFilterNet 0.5.6 (the deep-filter program and the DeepFilterNet3 model), by Hendrik Schröter | Taking the noise out from under a voice | MIT or Apache 2.0, at your option · MIT licence · Apache 2.0; source at github.com/Rikorose/DeepFilterNet |