Drop an audio file to begin
WAV, MP3, FLAC, M4A, OGG — analyzed locally in your browser. Nothing is uploaded.
Track
Load a track above to activate every toolLive Engine
Real-time meters while playing IDLEReal-Time Studio Rack
Live FX while playing — heard instantly, no render GR 0.0 dBOriginal (A) never changes. Tweak live, or let AI Diagnose propose exact slider values → Preview → Apply to render a separate Processed (B). Use Match loudness for a fair A/B (so better ≠ just louder).
Live Timeline
Sections · drops · key shifts (heuristic) — synced to playback —Analysis
Auto-measured · no processing appliedSpectral balance
Mix & Master Diagnostics
AI Brain & Quality Score
Learns from every track you processTwo-Track Match & Fix
Load two similar tracks · one click compares + fixes the weakerStem Lab
Real AI separation via your server · honest mid/side fallback otherwise OFFLINENo server? These buttons still work in-browser using mid/side math (karaoke-style vocal reduction + instrumental) — labelled as approximate. For true vocals/drums/bass/other, run the included vibesync-server and connect it.
Vocal Tone Shaper
Best on a separated vocal stem · works on the loaded track too READYAdvanced Noise Removal
Spectral denoise · hum notch · de-clip READYCover & Arrange Studio
Key · tempo · harmonies — real pitch/time engine READYFor your own recordings or material you have the rights to. Covers still need the songwriter's mechanical licence. This won't clone a specific person's voice, and it can't transcribe & rebuild every instrument from a library (that needs a server + multi-GB samples). Cover Modes below re-tone the same performance, so the musical feel is preserved.
AI Cover & Modern Instrument Studio
Keep the song · modernize the music READYKeeps your original composition, melody, timing & vocal and adds modern synthesized layers locked to the detected key, chords & BPM. Layers are synth (real Web Audio), not sampled instruments — and it can't transcribe & rebuild the original instruments (that needs a server + sample library). All layers are OFF by default; nothing is auto-applied or overwritten.
One-Click Cover keeps the vocal & adds pad/keys/bass. One-Click Instrumental removes the centre vocal (rough — use Stem Lab for a clean split) and rebuilds with modern layers. Result lands on B · Processed — compare with A, then 👍 Keep or 👎 revert.
Mastering Target
Pick a target, then ApplyAI Decision Panel
What was found · what changedExport
Renders the current A/B selectionSettings — AI Backend
Secure Gemini proxy · key stays on your server NOT SETWhen set, the AI Brain talks to your own /api/ai-chat endpoint (Gemini). The API key is read from GEMINI_API_KEY on the server and never appears in this page. Leave empty during preview on claude.ai to use the built-in assistant.