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DeepFilterNet
What it is
DeepFilterNet is a free, open-source speech enhancement framework for full-band 48 kHz audio that uses deep filtering. Its command-line tool suppresses noise in WAV files, with 48 kHz as its only currently supported sampling rate. A LADSPA plugin provides real-time noise suppression and can work with PipeWire filter chains to create a virtual microphone or audio output, including for apps such as Zoom or Discord. The plugin has a minimum latency of 20 ms from STFT processing, plus any additional delay from the LADSPA host. The Rust command-line tool uses DeepFilterNet2 by default; the Python interface documents DeepFilterNet and DeepFilterNet2. An optional post-filter may slightly over-attenuate very noisy sections. The framework supports Linux, macOS and Windows, although training is tested only under Linux. The Python package installs as deepfilternet, and an optional train extra adds data-loading functionality for Linux training. Training uses HDF5 datasets and a configuration file for train, validation and test sets. Precompiled binaries are provided through GitHub releases, with a Python wheel available through PyPI. The code is licensed under either MIT or Apache License 2.0, at the user's choice.
For and against
For
- Free and open source under MIT or Apache-2.0.
- Includes command-line and real-time plugin options.
- PipeWire chains can create a noise-suppressing virtual microphone.
- Framework supports Linux, macOS and Windows.
- Precompiled binaries and a Python wheel are available.
Against
- Command-line processing currently supports only 48 kHz audio.
- Training is tested only under Linux.
- Plugin minimum latency is 20 ms plus host latency.
- Post-filter may over-attenuate very noisy sections.
The verdict
DeepFilterNet offers both file-based and real-time noise suppression, with a specific 48 kHz audio focus. Users should account for the sampling-rate restriction, plugin latency and Linux-only tested training setup.
Who it suits
DeepFilterNet may suit developers or audio users seeking noise suppression for 48 kHz WAV files or a real-time LADSPA plugin. Its training tools are more relevant to users working with HDF5 datasets on Linux.
Plans and prices
Free and open source
MIT or Apache-2.0 licensing · self-hosted framework · Linux, macOS and Windows support
Read 15 Oct 2026 · github.com
DeepFilterNet
Free and open source · MIT or Apache-2.0 license
Read 4 Oct 2026 · github.com
On the record
- Audio coverage
- The framework targets 48 kHz full-band speech audio.github.com · read 15 Oct 2026
- CLI limitation
- The precompiled deep-filter command currently accepts only WAV files sampled at 48 kHz.github.com · read 15 Oct 2026
- Distribution
- The project provides precompiled binaries through its GitHub releases and a Python wheel through PyPI.github.com · read 4 Oct 2026
- Embedded performance
- The DeepFilterNet2 paper reports a real-time factor of 0.04 on a notebook Core-i5 CPU and describes embedded real-time use.arxiv.org · read 15 Oct 2026
- Framework platforms
- The framework supports Linux, macOS, and Windows; training is only tested under Linux.github.com · read 4 Oct 2026
- Hugging Face demos
- Hendrik Schröter's Hugging Face profile lists two DeepFilterNet Spaces, including one marked Runtime error.huggingface.co · read 15 Oct 2026
- Latency
- The LADSPA plugin has a minimum latency of 20 ms from STFT processing, plus latency from the LADSPA host.github.com · read 4 Oct 2026
- Latest release
- GitHub lists version 0.5.6 as the latest release and says it fixes issues 421 and 293.github.com · read 15 Oct 2026
- Licence
- The repository is free and dual-licensed so users may choose MIT or Apache License 2.0.github.com · read 15 Oct 2026
- License
- The repository code is free and open source under either the MIT License or Apache License 2.0, at the user's option.github.com · read 4 Oct 2026
- Limit: ASR use
- A Hacker News commenter cautioned that DeepFilterNet would not improve an automatic-speech-recognition model such as Whisper.news.ycombinator.com · read 15 Oct 2026
- Limit: Colab installation
- A 2025 GitHub issue reports metadata-generation failure while installing deepfilternet 0.5.6 in Google Colab.github.com · read 15 Oct 2026
- Limit: dependency setup
- A Hacker News user reported frustrating Poetry setup involving keyring behavior over SSH.news.ycombinator.com · read 15 Oct 2026
- Limit: package installation
- A GitHub issue reports that installing deepfilternet 0.5.3 failed because the required deepfilterlib 0.5.3 distribution was unavailable.github.com · read 15 Oct 2026
- Models and processing
- The Rust command-line tool defaults to DeepFilterNet2, while the Python interface also documents use of DeepFilterNet and DeepFilterNet2 models.github.com · read 4 Oct 2026
- Noise suppression
- Its command-line tool suppresses noise in WAV recordings.github.com · read 15 Oct 2026
- Package activity
- SkillFed lists the package as dormant, with its latest release dated 2023-08-31.skillfed.io · read 15 Oct 2026
- Package downloads
- SkillFed reports 78,622 monthly downloads for deepfilternet in its displayed 30-day window.skillfed.io · read 15 Oct 2026
