StemSleuth

StemSleuth is a desktop app (VST3/AU plugin + standalone) that audits your mix using your stems and prints a brutally clear report: phase correlation conflicts, low-end masking hotspots, mono-compatibility failures, clipped inter-sample peaks, harsh resonance clusters, and inconsistent loudness across sections. It doesn’t try to “auto-master” your song; it tells you exactly what’s wrong, where it happens in the timeline, and which stem pairs are causing it, with one-click A/B to verify. The MVP focuses on fast, reliable diagnostics that producers can trust more than vague AI feedback. Optional AI assists by translating technical findings into actionable steps (e.g., “Kick vs bass: 60–90 Hz masking; try sidechain 2–4 dB GR, narrow EQ cut on bass at 72 Hz”). Export a shareable PDF/JSON report for collaborators and mix engineers.