UniverSR Upscaler - UniverSR
Model card for the UniverSR restoration preset in Neural Analog (UniverSR, 2026)
Available on the Pro and Max plan. Consumes 6x the processing minutes. Maximum input length is 20 minutes.
UniverSR Description
Upscale music, voice, and sound effects to 48 kHz. UniverSR is a 2026 model developed by the University of Seoul which performs audio super-resolution directly in the complex STFT domain using flow matching. Very similar to AudioSR, but with more coherent high ends. Output sample rate: 48kHz. Recommended for: Low quality recordings, missing high frequencies, hissing noise around 12-13Khz (hihats, sibilance, brilliance). Low thresholds (eg: 4Khz) will change audio the most, while high threshold will preserve what's already here. Not recommended for: muddy bass or muddy low end. Use Neural Remix instead.
UniverSR Architecture
UniverSR Parameters
| Key | Label | Options | Description |
|---|---|---|---|
| frequency_cutoff | Frequency Cutoff | 12Khz (SR: 24Khz) (12000), 8Khz (SR: 16Khz) (8000), 6Khz (SR: 12Khz) (6000), 4Khz (SR: 8Khz) (4000) | No additional help text. |
| stereo_mode | Channels | Stereo (Mid/Sides) (mid_sides), Stereo (L/R) (left_right), Mono (single_pass) | No additional help text. |