Show your work
Every claim on this site is reproducible. Here's how.
Audio tools are usually sold with adjectives. We'd rather hand you the test bench: the exact recipes that created our demo files, the original degraded audio to download, and the measured results our engine is held to. If we ever fail your reproduction, we want to know.
How the demo files were made
Clean studio voice recordings were deliberately degraded with controlled, measurable damage: calibrated noise at an exact signal-to-noise ratio (SNR), synthetic room reverb at an exact RT60 decay time, and precise level drops. No cherry-picking a lucky take - the damage is parametric, so anyone can recreate comparable test material.
Typical recording
Download the degraded original ↓Recipe: Broadband noise at 14dB SNR + room reverb RT60 0.3s (75% dry) + level lowered 8dB
Processing: One pass, default settings - exactly what the free preview runs.
Heavy noise
Download the degraded original ↓Recipe: Broadband noise at 12dB SNR
Processing: Two passes: second pass ran AI noise reduction at 85% strength.
Far too quiet
Download the degraded original ↓Recipe: Level dropped to ~-18dB below healthy
Processing: One pass, default settings.
Extreme rescue
Download the degraded original ↓Recipe: Noise at 7.5dB SNR + reverb RT60 0.6s + level -14dB (deliberately near the limit)
Processing: Two passes, manual settings. Result keeps some reverb and drops occasional syllables - published anyway, because that is where the limits are.
Measured engine claims
| Loudness accuracy | Closed-loop mastering: output is measured after processing and corrected. Across our eval corpus the mean miss from the -14 LUFS target is ~1 LU (down from 5.6 LU before the closed loop). |
| True peak safety | 4x-oversampled true-peak measurement with a -1.0 dBTP ceiling. Clipped output files in the eval corpus: zero. |
| Analysis transparency | The same analyzer that drives processing decisions is public: run any file through the free check and see the measurements we act on. |
Known failure modes (published on purpose)
- Speech at or below ~0dB SNR (noise as loud as the voice) cannot be reliably recovered - syllables drop, artifacts appear. Our own “extreme rescue” demo shows this.
- Clipping distortion in the source is permanent; we prevent further damage and improve everything around it.
- Dereverberation is beta: strong room reverb is reduced, not removed - and we say so in the product.
- Frequencies discarded by low-bitrate encoding cannot be recreated - we detect band-limited sources and refuse to fake brightness on them.
The test that matters is your file, not ours: the mastered preview is free on anything you upload.