Speech synthesis that runs on your Mac.
Offline. On your hardware. No cloud. No per-character fees.
Download for MacRuns on your Neural Engine
XTTS model optimized for Apple Silicon. Synthesis happens on the dedicated Neural Engine in your M-series chip.
Fully offline
No internet connection required after the initial model download. Works on a plane, in a closed studio, anywhere.
Menu bar app
Lives quietly in your tray. Open the studio when you need it. Daemon runs in the background.
Studio-quality output
Export to WAV or AIFF at studio quality. Ready for your DAW, podcast editor, or video project.
Why local?
Most voice synthesis tools work the same way: you send text to a server, a model runs in a data center, audio comes back. Your voice clone lives on someone else's infrastructure. Your usage is metered. Synthesis stops when the service changes its terms.
Sovereign Voice works differently. The model runs locally, on your Mac. No account. No tracking. No metering. Disconnect from the internet entirely — it still works.