Open-source licenses
Quiet Voice Audio is built on these open-source models and libraries.
| Component | Used for | License |
|---|---|---|
| DeepFilterNet3 | Noise removal | MIT / Apache-2.0 |
| Demucs v4 (htdemucs) | Background music removal | MIT |
| NARA-WPE | Echo removal | MIT |
| WebRTC VAD | Speech detection | MIT / BSD-3-Clause |
| PyTorch | Model runtime | BSD-3-Clause |
| FFmpeg | Audio/video decoding and muxing | LGPL-2.1+ / GPL-2.0+ |
| NumPy, SciPy | Signal processing | BSD-3-Clause |
| libsndfile, libsoxr | Audio I/O and resampling | LGPL-2.1 |
| pyloudnorm | Loudness normalization | MIT |
| FastAPI, SQLAlchemy, Dramatiq | Backend | MIT / MIT / LGPL-3.0 |
| Next.js, React | Website | MIT |
| wavesurfer.js | Waveform | BSD-3-Clause |
| next-intl | Translations | MIT |
| Tailwind CSS | Styles | MIT |
| VoiceBank+DEMAND (sample on this page) | Example recording | CC BY 4.0 |