Before testing
- Install Fabric Loader, Fabric API, and the current NSSVC beta JAR on every participating client.
- Read the in-game privacy notice before enabling voice.
- The default controls are
Nfor settings,Vfor push-to-talk, andMfor mute or deafen. All can be rebound in Minecraft Controls. - Use the Players tab for individual volume and block controls.
What is most useful to test
- Conversation while walking between open areas, walls, doors, and water.
- Lobby, dimension, proxy, and server changes without manually reconnecting.
- Different microphones, headphones, speakers, operating systems, and RNNoise support.
- Long-distance users and unstable Wi-Fi, especially when only one direction sounds choppy.
- Busy lobbies with several nearby simultaneous speakers.
Current limitations
- Voice uses encrypted WSS transport but is not end-to-end encrypted.
- The community relay is home-hosted and may be unavailable during maintenance.
- Windows x64 has the widest RNNoise device coverage; Linux, macOS, and ARM need more testing.
- Essential shared worlds are supported but need wider testing across Essential releases.
- NSSVC is not approved by Hypixel, Mojang, Microsoft, or any Minecraft server.
Bug reports
Include the NSSVC version, operating system, audio devices, transmission mode, approximate region and latency, what happened, and whether the speaking icon remained lit. Include the Minecraft log for crashes. Never post Minecraft access tokens or other private credentials.