The audio mixer

Volume, mute, meters, and hearing a source in your headphones.

Every source with sound has a channel: a meter, a volume slider (in dB: 0 dB is as it came in), a mute button and a headphones button.

• Aim for the meter peaking in the yellow, just below red, when you talk normally. If it hits red, turn it down.
• Headphones lets you hear that source yourself. Use real headphones: from speakers, your microphone picks it up again (an echo). Choose which output it plays on in its properties › Audio › Monitor on.
• Screens, videos, web overlays and phone cameras carry their own sound; cameras don't (add your microphone separately).
• A source's sound is heard only while it's visible in the live scene. Microphones are always heard.
• OUT at the top is everything together, as it goes to the stream. A limiter stops it clipping.

Ducking (music under your voice): a channel's … menu › Duck while I talk. It turns itself down (15 dB to start with) whenever a microphone is heard, and back up after you stop; the channel shows DUCKED while it's down. Choose how much, how loud your voice must be, and how fast in its properties › Audio. It can listen to any source, not just microphones.

More in each channel's … menu: audio filters, balance, mono and lip sync.

Related guides

• Audio filters: cleaner sound: Noise gate, compressor, EQ, gain and limiter, plus balance, mono and lip sync.
• No sound, or the meter doesn't move: Mic permission, mute, the wrong device, or a hidden source.

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