Your first voice call

You are connected. Here is how to start talking.

1. Move into a channel

Mumble does not have one big room, channels are explicit. In the left sidebar:

• Single-click a channel to view it. You will not leave your current channel, but you can see who is in the other channel and read its chat.
• Double-click a channel to join it. Your avatar moves there, and you can talk to the people in that channel.
• Right-click a channel for the context menu (rename, ACL, link, and more).

The channel you are in is highlighted, and your name appears beneath the channel in the user list.

2. Pick an activation mode

Open Settings, Voice (or click your avatar then Settings). Three modes are available:

Voice Activation (default)

Your mic transmits when speech is detected. Threshold based. The AI noise removal cleans the result.

Push to Talk (PTT)

Audio only flows while a key is held. Pick the key with the shortcut recorder. Best for noisy rooms or for podcasters.

Continuous

Always on, no gate, no noise removal. Use only when you need full fidelity and the room is silent.

3. Calibrate

Hit the Calibrate button on the Voice panel. A live level meter pops up so you can:

• Speak normally. The green fill should comfortably cross the threshold line.
• Stop talking. The fill should drop back below the line.

If your voice barely crosses the line, lower the Threshold or boost Microphone Volume. If the line is constantly below ambient noise, raise the threshold.

Auto sensitivity

Turn on Auto Sensitivity to let the app learn your room automatically. It tracks your background noise over the first ten seconds or so and adjusts the threshold for you.

4. Test in a Test channel

Most servers have a Test or Lobby channel. Join it, hit your push-to-talk key (or just talk if you are on Voice Activation), and watch the green ring appear around your avatar. That ring is the speaking indicator.

You can also watch the local level meter in the header.

5. Mute and deafen

Two icons sit at the top of the window:

• Mute outgoing audio.
• Deafen (mute plus do not receive any audio).

Push-to-talk users almost always leave themselves toggled-mute and rely on the push-to-talk key instead.

6. Adjust on the fly

If…	Then…
Background noise leaks through	Switch noise removal to DeepFilterNet. It is the heaviest and cleanest option.
Voice cuts at the start of sentences	Raise Hold Frames in Voice, Expert.
Audio is choppy on Wi-Fi	Lower the bitrate, or enable Force TCP in Voice, Network.
You sound quiet	Enable Auto Gain in Voice, Audio Processing.

Full details on the Audio configuration page.

You are live

That is it, you are now a fully operational Mumble user. Recommended next stops:

1. Pretty up your account, see Profile customization.
2. Set per-event notification sounds, see Notifications.
3. Bind a global mute key, see Keyboard shortcuts.