Disabling the DualSense controller’s built-in microphone so that it isn’t enabled by default is relatively easy to do from the console’s Settings:
- Go to the PS5 home screen.
- Click on Settings (small gear icon in the top right corner of your screen).
- Click on Sound.
- Click on Microphone.
- Ensure that the Input Device is set to Microphone on Controller.
- Head down to the option which reads Microphone Status When Logged In.
- Set this option to Mute.
And that’s it! You’ve configured the mic to be off by default whenever the console is switched on. Likewise, whenever you start a game, it should be off by default, ensuring that there is no hot microphone around transmitting your voice during gaming sessions. If you’d rather have it on, repeat the steps above and select On where you previously selected Mute against the option which reads Microphone Status When Logged In.