Your microphone might not be working on Roblox for several reasons. First, ensure you have verified your age and are 13 or older. This is required for using voice chat on Roblox. If you haven’t done this, you won’t be able to use the mic.
Next, check your microphone settings. Make sure the mic is selected as the input device in Roblox settings and Windows sound settings. Confirm that the volume is high and the mic is not muted. Sometimes, your mic might be used by other apps, so close those applications if needed.
Not all Roblox games support voice chat. Verify if the game you are playing has this feature enabled. Additionally, ensure the in-game sound settings are correct, with the right input device selected and no mute settings active.
Technical issues can also be a problem. Try restarting the game or your computer to fix temporary glitches. You might also want to use a different version of the Roblox app. If you use Windows, go to sound settings, recording, select your microphone, click on advanced, and uncheck everything under Exclusive Mode.
If you’re using a VPN, it might be causing connectivity issues. Disable the VPN or switch to a different network. Lastly, if none of these steps work, you might have a hardware issue. Try using a different microphone or seek technical support.