Positively could possibly be the controller needing a replace. Go to settings,machine,equipment, then click on replace. BEFORE you hit replace make sure that your mic is plugged into your controller. You probably have a wi-fi mic full disregard what I mentioned and replace the controller by itself. Additionally examine if the console wants a replace. Settings,system,updates. Lastly if nothing labored above ensure you restart your Xbox by way of residence button. if none works then arduous restart it by holding down the ability button for 10 seconds then turning it again on. Now if someway your nonetheless out of lock contact Microsoft to additional assist you to.