Most mic issues come from the wrong input device, blocked permissions, an OS audio conflict, Discord noise suppression, or a loose headset connection.
Make sure you are not muted in Discord. The bottom-left microphone icon should be normal, not crossed out. Also check the keyboard shortcut because it can accidentally mute you.
Go to Discord Settings > Voice & Video and confirm the right microphone is chosen in Input Device. If you have a headset and a laptop mic, Discord may be using the wrong one.
In Windows, Mac, or browser settings, make sure Discord is allowed to use the microphone. If permission is blocked, Discord will not receive audio even if the mic works elsewhere.
Discord's noise suppression can be too aggressive. Turn off Krisp or other suppression options in Voice & Video settings and test again.
Unplug and reconnect USB microphones, or disconnect and re-pair Bluetooth headsets. If possible, try a different port or cable to rule out hardware problems.
Close Discord completely, reopen it, and if needed restart the computer. A full reboot often clears stuck audio services and restores the mic.
Switch Input Mode to Push-to-Talk to see whether voice activity detection is the problem. If Push-to-Talk works, the issue is usually gain, suppression, or sensitivity settings.
Open Sound settings, confirm the correct microphone is set as the input device, and check privacy permissions under Microphone. If needed, update the audio driver in Device Manager.
Go to System Settings, open Sound and Privacy & Security, and make sure Discord can access the microphone. Then relaunch Discord and test again.
Allow microphone permission in your browser, then check the site permissions for Discord. If one browser keeps failing, try another browser or open Discord in a private window.
For USB headsets, try another port. For Bluetooth headsets, make sure the headset is not in a low-power state. If your headset has a physical mute switch, confirm it is off.
If the mic still does not work after checking permissions, input device selection, and hardware connections, the problem may be with the Discord app or your account. Contact Discord support if the issue appears on multiple devices.
Open Discord voice settings and run the mic test before joining a meeting or game session. Discord plays back a short recording so you can confirm the mic is working. This catches permission changes and input device switches before they cause problems.
Outdated audio drivers and Discord builds are a common source of microphone failures. Set your operating system and Discord to update automatically so you always have the latest compatibility fixes and bug patches.
USB headsets and external microphones can loosen over time. Periodically reseat the connection and inspect cables for damage. If your headset has a physical mute switch, make a habit of checking its position before joining voice.
Discord remembers the last selected input device, but it can switch when you plug or unplug a headset. Go to Voice and Video settings and make sure your preferred device is selected and that the Input Device drop-down is not set to Default.
Yes. A frayed or bent headphone cable can cause intermittent audio, crackling, or a complete loss of microphone signal. Try a different cable if your headset supports it, or test with another pair of headphones to rule out hardware failure.
Most commonly the wrong input device is selected, the mic is muted, or microphone permission is denied at the operating system level.
Discord noise suppression, a USB disconnect, or Bluetooth power saving can make your voice drop out mid-call.
Yes. The browser version needs microphone permission from the browser itself in addition to OS permissions.
Discord may be using a different input device or voice mode. Check Input Device and try switching to Push-to-Talk.