Microphone Not Working on Zoom, Teams or Google Meet
Quick answer: If your microphone is not working on Zoom, Teams or Google Meet, the cause is almost always one of three things: the wrong microphone is selected in the app, the app does not have permission to use your mic, or your system input volume is muted or at zero. Fix those in order and the problem usually clears in under two minutes.
Before you start, test your microphone here — if the meter moves when you speak, your mic hardware is fine and the problem is inside the calling app.
1. Select the correct microphone in the app
Laptops often default to a built-in mic instead of your headset. In your meeting app, open the audio settings and pick the right input device:
- Zoom: click the arrow next to the microphone icon → choose your device under "Select a Microphone".
- Teams: ⋯ More → Settings → Devices → Microphone.
- Google Meet: three-dot menu → Settings → Audio → Microphone.
2. Give the app microphone permission
Windows
Settings → Privacy & security → Microphone, then turn on access for the app (and for desktop apps in general).
Mac
System Settings → Privacy & Security → Microphone, then tick the app.
Browser (Meet)
Click the padlock/camera icon in the address bar and set the microphone to Allow, then reload.
3. Check your input volume
If the right device is selected and permitted but still silent, your input level may be muted or at zero. On Windows: right-click the speaker icon → Sound settings → Input → raise the level. On Mac: System Settings → Sound → Input.
Still not working?
Close other apps that might be holding the mic (only one app can use it at a time), unplug and replug a USB mic, and restart the meeting app. Then run the microphone test again to confirm.
Zoom-Specific Decision Path
If others hear nothing at all, Zoom likely has the wrong microphone selected or your OS is blocking it — set the right device under Settings → Audio and confirm Zoom has microphone permission in your system privacy settings. If your volume swings up and down, turn off "Automatically adjust microphone volume" in Zoom's audio settings. If you're muted without realising, check both Zoom's own mute button and any headset mute. If the mic passes the microphone test but still fails only in Zoom, the fix is entirely inside Zoom, not your hardware.
Edge Cases and Real Error Messages
Zoom sometimes shows "Zoom is unable to detect a microphone," which almost always means another app grabbed the device or the OS permission is off — close other call apps and re-check permissions. On macOS Sequoia, the first time you join a meeting Zoom must be granted access under System Settings → Privacy & Security → Microphone, and meetings joined before granting it stay silent until you rejoin. Bluetooth earbuds can also route audio oddly mid-call, switching to the low-quality mic profile; reconnecting or using a wired headset avoids it.
Step-by-Step Zoom Audio Fix
Work through these in order. First, in a meeting, click the small arrow beside the microphone icon and pick your device under "Select a Microphone." Next, open Settings → Audio and click "Test Mic" — speak and watch the input bar; if it moves here but others can't hear you, you're muted in the meeting or on a headset. Then confirm Zoom has system permission: on Windows 11, Settings → Privacy & security → Microphone, with Zoom enabled; on macOS Sequoia, System Settings → Privacy & Security → Microphone. Finally, if nothing works, sign out of Zoom, restart it, and rejoin — Zoom only picks up a newly granted permission after a restart.
When Zoom Is Fine but the Problem Is Elsewhere
If the microphone test is silent too, the issue is system-wide rather than Zoom's, so fix the mic in Windows or macOS first. If a Bluetooth headset sounds muffled in Zoom, that's the low-quality Hands-Free profile the headset switches to whenever its mic is used — a wired headset or the laptop mic avoids it. And if your voice sounds robotic or drops words, your upload bandwidth may be the limit; closing other devices using the connection or switching to a wired network often clears it. Echo, finally, is nearly always your speakers feeding the mic — headphones end it instantly.
Zoom on Mobile and in the Browser
The fixes differ slightly by platform. In the Zoom mobile app, the first time you join you must allow microphone access in the iOS or Android permission prompt; if you tapped "Don't Allow," go into your phone's Settings → Zoom → Microphone and switch it on, then rejoin. Also tap "Join Audio" or the headphone icon in the meeting, since mobile sometimes joins without connecting audio at all. In Zoom on the web, the browser itself must grant mic permission via the address-bar lock icon, separate from any system setting. On a Mac, the browser also needs system permission under System Settings → Privacy & Security → Microphone for the browser app you're using.
If the Whole System Is Affected
When Zoom, your browser test and every other app are all silent at once, stop troubleshooting Zoom and fix the mic at the system level first — it's a device, permission or driver problem, not a Zoom one. Our guide to a mic not working on Windows 11 walks through that side. Only once the microphone test meter moves should you return to Zoom's own audio settings.
Frequently Asked Questions
Why can't anyone hear me on Zoom even though my mic works?
Zoom has its own microphone selection separate from your system. Open Settings → Audio in Zoom and choose the correct input device, then confirm Zoom has microphone permission in your OS privacy settings. Also check you aren't muted in Zoom or on a headset.
How do I select the right microphone in Zoom?
Click the arrow next to the mic icon in a meeting, or go to Settings → Audio, and pick your device under Microphone. Use 'Test Mic' there to confirm the level bar moves when you speak.
Zoom says it can't detect a microphone. How do I fix it?
Another app is usually holding the mic, or the OS permission is off. Close other video apps, grant Zoom microphone access in your system privacy settings, and restart Zoom. On a Mac you may need to rejoin the meeting after granting access.
Why is my Zoom mic volume too quiet or fluctuating?
Turn off 'Automatically adjust microphone volume' in Zoom's audio settings and set the input level manually. Fluctuating volume is almost always that auto-adjust feature reacting to background noise.
Why does my mic pass the Zoom test but fail in the meeting?
You're almost certainly muted in the meeting or on a headset switch. Zoom's mic test works regardless of meeting mute, so a passing test with silent meeting audio points straight to the mute button.
Can a Bluetooth headset cause Zoom mic problems?
Yes. Bluetooth headsets drop to a low-quality Hands-Free profile when the mic is active, which sounds muffled and can switch mid-call. A wired headset or the built-in mic avoids it.