Soundtheory Gullfoss vs StemDesk
Soundtheory Gullfoss
soundtheory.com
StemDesk
stemdesk.aiSide by side
| Figure | Soundtheory Gullfoss | StemDesk |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Plans published | 1 | 3 |
| Spec score · AI Audio Mixing Software | 7.7 (#16) | 8.7 (#1) |
| Purpose | Gullfoss is an intelligent equalizer that analyzes audio and adjusts it to improve clarity, detail, spatiality, and balance. | StemDesk separates audio into stems, builds a mix with VST3 processing, and can deliver an editable DAW session. |
Plans
In their own words
Soundtheory Gullfoss
Soundtheory Gullfoss has no write-up on Specifiction yet; its figures are above.
StemDesk
StemDesk is desktop audio software for separating audio into stems, shaping a mix with VST3 processing, and exporting editable DAW sessions. Its auto-mix workflow measures stems and applies per-stem processing, gain staging, panning, sidechain ducking, vocal rides, and mastering. A local AI panel offers mix critique, spectral masking analysis, a session-aware coach, and vocal transcription; optional music generation requires a separate ACE-Step installation. Mixing, separation, and plugins work offline, though downloads and the optional one-time AI model fetch require internet access. The maker says audio, projects, personal data, and telemetry are not transmitted at runtime. The suite includes 17 plugins, with plugin formats differing by operating system, and lists support for several DAWs, including Pro Tools, REAPER, Cubase, and Ableton Live. Free includes stem separation and three plugins. Pro is $99.15, paid once; Studio is $179.25, paid once and adds one-click Auto-Mix, session building and exports, and batch album processing. Downloads are listed for Windows, macOS on Apple Silicon (beta), and Linux (beta).