Sfera

Don't want to show your face on stream? Let Sfera talk for you.

Sfera is a 3D wireframe sphere that breathes, ripples and swells as you speak. It listens to your microphone and moves in time with your syllables: no webcam, no face tracking, no model to draw or rig. Open it, pick your mic, capture it in OBS.

What it does

• Reacts to your voice in real time, and calms down when you're quiet
• Noise gate and sensitivity with a live level meter, so you can tune it without guessing
• Green or black background, ready for OBS (Chroma Key, or the Screen blending mode)
• Resizable window: the sphere scales with it. Optional "always on top"
• English and Italian interface
• Nothing is recorded: Sfera only measures how loud you are. No account, no internet connection

Full version

• No watermark
• Any color for the sphere and the background
• A second color the sphere shifts to while you speak
• Adjustable trail and rotation speed

Try it first: the free demo below has a white sphere, a green or black background and a small "Sfera Free" watermark. If it works for you, get the full version: your settings carry over, and OBS finds the window again. 

Set it up in OBS

1. Open Sfera.exe and choose your microphone.
2. In OBS: Sources → + → Window Capture → "[Sfera.exe]: Sfera".
3. Green background: add the Chroma Key filter. Black background: right-click the source → Blending Mode → Screen (not “Blending Method”).

Requirements

Windows 10 or 11 (64-bit) and a microphone.

Windows may show "Windows protected your PC" the first time, because Sfera is new and not code-signed yet. Click "More info", then "Run anyway".