- Access is blocked. The console says “microphone access blocked”. Click the icon left of the address bar, set the microphone to Allow, then press Start again. On a Mac, also check System Settings → Privacy & Security → Microphone for your browser.
- The wrong microphone is used. Microphone takes the computer's default. For a mixer, sound card or USB microphone, set Input type to Input device and choose it under Device.
- The level is too low. The bar should move clearly when you speak. If it barely moves, speak closer or raise the output of your mixer.
- Another app holds the microphone. Close video-call apps that may be using it, then try again.
Good to know: You can change the source during a live broadcast, in the Audio block on the right. The session, the code and the listeners stay.