Tuno
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Short answer

macOS has no global microphone mute. Tuno mutes every input device with ⌃⌥⇧M or one click, and shows a red microphone in the menu bar while you’re muted.

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In macOS

Each call app has its own mute button, and macOS only lets you lower the input level in System Settings › Sound. There’s no shortcut that works everywhere.

With Tuno

  1. 1

    Press ⌃⌥⇧M (or click Microphone in the Tuno panel).

  2. 2

    All microphones are muted and a red microphone appears in the menu bar.

  3. 3

    Press the shortcut again, or click the red icon, to unmute.

Download for Mac

macOS 15 or later, Mac with Apple silicon.

Frequently asked questions

Does it work in Zoom, Teams, Meet and FaceTime?

Yes. The microphone is muted at the system level, so every app hears silence.

What if I plug in another microphone?

New microphones are muted too while mute is on.

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