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Studio

Record, compare, keep.

A synced recording, playback and analysis screen for remote voice lessons. It sits beside your video call; audio stays peer-to-peer and end-to-end encrypted, and every take is kept on both machines.

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Join a session

Paste the link from your video call’s chat, or type the code. No account needed.

Lessons

Takes you saved at the end of a session — encrypted with a key only you hold.

Sign in to see yours →
Solo studio

Try every widget alone, no session needed. Nothing leaves this browser.

Open /s/solo →

How a session works

  1. 1Share the linkStart a session and paste the short link (or show the QR) in your video call’s chat.
  2. 2Both open itThe other person picks their role — no account needed. The student holds the mic by default.
  3. 3Mic checkEach side picks an input and measures the room for three seconds, so breath and hum never read as voice.
  4. 4RecordTakes stream peer-to-peer at 48 kHz and are kept on both machines; every widget analyses them live.
  5. 5Synced playbackOne playhead, two screens — each of you hears the take from your own app, not through the call.
  6. 6Save to a lessonAt the end, a signed-in account can seal the takes under its own key and keep them with the lesson.

End-to-end encrypted and peer-to-peer: the server only ever sees connection setup, never audio. In the room, W adds a widget and ? lists every key.