Microphone not working in Zoom, Teams, Discord, and other apps
When the microphone works in one place and not another, the fault is never the hardware. It is one of three layers: OS permission for that app, the app's own device choice, or a mute you cannot see.
Last reviewed on August 9, 2026
When your microphone works on some sites and apps but not others, the hardware is fine. What varies is the permission layer and the device preference each application keeps for itself. This guide covers the apps people ask about most — Zoom, Teams, Discord, Google Meet, WhatsApp, and browser-based voice assistants — plus the general pattern to apply to any app not listed here.
Confirm the baseline first. Run the microphone test. If the level meter moves there, the microphone, drivers, and OS permissions are all working, and the problem is confined to the app that is failing.
The three-layer pattern
Every app-specific failure sits in one of three layers. Check them in this order, because each one masks the ones below it.
Operating system permission for the app. Windows: Settings › Privacy & security › Microphone. macOS: System Settings › Privacy & Security › Microphone. On macOS you must fully quit and reopen the app afterwards.
The app's own device selection. Nearly every communication app stores its own input choice, and it does not follow the system default. After changing a headset, the app may still be pointing at a device that is no longer connected.
In-call or in-session mute. Both the app's software mute and any hardware mute on the headset. Many meeting apps also join muted by default, and some remember that preference permanently.
Zoom
Open Settings › Audio.
Pick your device explicitly under Microphone rather than leaving it on "Same as System".
Click Test Mic, speak, and watch the input level bar.
Turn off Automatically adjust microphone volume if your level swings up and down during calls.
Set Suppress background noise to Low — the Auto and High settings can gate out quiet speech entirely.
Untick Mute my microphone when joining a meeting if you keep starting calls silent.
Zoom's original audio mode (enabled per meeting) disables its processing chain, which is useful for confirming whether Zoom's own noise suppression is the culprit.
Microsoft Teams
Open Settings › Devices and select the correct microphone.
Use Make a test call — it plays your voice back, which tells you far more than a level bar.
Set Noise suppression to Low or Off while troubleshooting; the default Auto setting is aggressive.
If Teams shows no devices at all, sign out, quit completely from the system tray, and reopen.
Clearing the Teams cache resolves persistent device-list problems. On Windows, delete the contents of %appdata%\Microsoft\Teams with Teams closed.
Discord has more microphone settings than any other consumer app, and several can silence you independently.
Settings › Voice & Video. Set Input Device explicitly.
Raise Input Volume and watch the Mic Test bar as you speak.
Switch Input Mode to Voice Activity temporarily. If Push to Talk was set to a key you no longer press, that alone explains the silence.
Untick Automatically determine input sensitivity and drag the threshold manually to just below your speaking level. Automatic sensitivity is the most common Discord culprit.
Turn off Noise Suppression (Krisp), Echo Cancellation, and Advanced Voice Activity one at a time.
If all else fails, click Reset Voice Settings at the bottom of the page.
On Windows, Discord's legacy audio subsystem sometimes works when the modern one does not — switch it under Voice & Video › Audio Subsystem.
Google Meet and other browser calls
Meet, browser-based Teams, Whereby, and similar tools are all governed by browser permissions rather than app settings.
Check the address bar for a crossed-out microphone icon.
Inside Meet: ⋮ › Settings › Audio and choose the device.
Confirm the browser itself has OS-level permission — on Windows this is the "Let desktop apps access your microphone" switch.
Close other tabs and apps that may be holding the microphone exclusively.
"Didn't hear that — tap the microphone to try again"
Voice assistants and speech-recognition features produce this message when the microphone opened successfully but no usable speech arrived. The device is working; the signal is not good enough. The usual causes:
Input level too low. Recognition needs a clearly stronger signal than a level meter does. Raise the input level and move closer.
Noise suppression gating your speech. Aggressive suppression removes the beginning of words, and recognition fails on truncated audio.
Background noise swamping the voice. Check your room with the sound level meter; recognition degrades sharply above about 60 dB of ambient noise.
A Bluetooth headset in calling mode that has dropped to narrowband audio.
The wrong microphone selected — commonly a webcam microphone across the room instead of the headset on your head.
Record yourself with the recorder and listen back. If you sound distant or clipped to yourself, recognition has no chance.
Games and voice chat
Most games keep their own audio device selection, entirely separate from Windows and from any overlay.
Push-to-talk defaults differ per game and often conflict with movement or ability keys.
Overlays from Discord, Steam, NVIDIA, and vendor software can capture the microphone before the game does.
Some titles only support the system default device, so the fix is to change the Windows default rather than any in-game setting.
Anti-cheat software occasionally interferes with audio device enumeration; test with the game closed to confirm.
Any app not listed here
The same sequence works for a language-learning site, a karaoke app, a browser-based recorder, or anything else:
Universal app checklist
Confirm the microphone works at all with the microphone test.
Grant the app OS-level microphone permission, then restart the app.
Find the app's own input device setting and select the device explicitly.
Check both software and hardware mute.
Close every other app that might hold the microphone.
Disable the app's noise suppression and automatic gain control.
Restart the app; if it is browser-based, reload the page.
Reboot once — it clears stale audio sessions nothing else will.
If the microphone fails in every app rather than just one, the problem is not app-level. Start with Windows or Mac instead.
Frequently asked questions
Why does my microphone work in one app but not another?
Each app stores its own device preference and needs its own operating-system permission. An app pointing at a headset you have since unplugged will stay silent while everything else works.
How do I fix my microphone in Discord?
Open Settings, Voice and Video, select the input device explicitly, then untick 'Automatically determine input sensitivity' and set the threshold manually. Automatic sensitivity is the most common Discord culprit.
Why does Zoom cut off the start of my sentences?
Zoom's background noise suppression is too aggressive. Set it to Low in Settings, Audio, and turn off 'Automatically adjust microphone volume'.
Teams shows no microphone devices at all. What should I do?
Sign out, quit Teams completely from the system tray, and reopen it. If devices are still missing, clear the Teams cache folder with Teams closed.
What does 'Didn't hear that, tap the microphone to try again' mean?
The microphone opened but no usable speech arrived. Usually the input level is too low, noise suppression is gating your speech, or background noise is swamping your voice.
Why does my microphone fail only in games?
Most games keep their own device selection separate from Windows, and some only support the system default device. Overlays from Discord, Steam, or NVIDIA can also capture the microphone first.