Auris is a desktop audio library scanner for Linux, built for anyone who cares about the quality of their music.
It scans your music folders and gives you a deep technical analysis of every file — revealing clipping issues, dynamic range, true audio quality, and whether your "lossless" files are actually lossless.
- Clipping risk detection — identifies tracks with dangerously loud peaks
- Dynamic range measurement — reveals over-compressed or heavily limited tracks
- True lossless detection — uses spectral analysis to detect transcoded files (fake FLACs)
- Frequency cutoff estimation — identifies where audio content drops off
- Sample rate & bit depth reporting — full technical breakdown per file
- Multi-threaded scanning — fast parallel analysis of large libraries
- Progress bar with stop button — cancel scans at any time
- Filter & search — filter by risk level, search by filename or metadata
- Export CSV — save results for further analysis
- Dark & light mode — automatically follows your system theme
- Open / Reveal in Folder — quickly act on flagged files
- Built-in help — plain language explanations of every metric
Auris uses FFmpeg to perform a single-pass analysis of each audio file, extracting:
- Peak and mean volume (for clipping risk)
- Frequency band energy above 16kHz and 20kHz (for lossless detection)
- Dynamic range (peak vs RMS)
- Sample rate and bit depth (via FFprobe)
Results are displayed in an interactive table with color-coded risk levels and exportable as CSV.
| Column | What it means |
|---|---|
max_volume |
Loudest peak in dBFS. Close to 0.0 dB = clipping risk |
mean_volume |
Average loudness. Helps identify compression |
risk |
High / Moderate / Low clipping risk |
cutoff_freq |
Estimated frequency cutoff. 21000 = lossless, 15000 = lossy |
quality |
Excellent / Likely Lossy / Low Quality Lossy |
dynamic_range |
Higher = more natural. Below 8 dB = heavily compressed |
sample_rate |
44100 = CD quality. 96000+ = hi-res |
bit_depth |
16-bit = CD. 24-bit = studio quality |
- Linux
- FFmpeg
- libfuse2 (only needed for AppImage)
- Python 3.12+ (only needed if running from source)
- Download
Auris-x86_64.AppImagefrom the latest release - Make it executable and run:
chmod +x Auris-x86_64.AppImage
./Auris-x86_64.AppImageInstall dependencies if needed (Ubuntu/Debian/Pop!_OS):
sudo apt install ffmpeg libfuse2git clone https://github.com/noisetta/auris.git
cd auris
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python app.pyContributions are welcome. Feel free to open issues or pull requests on GitHub.
If Auris is useful to you, consider supporting development:
☕ Ko-fi — one-time tip
MIT License — free to use, modify, and distribute.