How to enable Noise Cancellation on Facetime
There are five steps. Follow each step carefully
step 1 ) Open the Facetime app. You don’t have to make a call like on macs.
step 2 ) Open the Control Centre from the top of the screen
step 3 ) Tap the microphone
step 4 ) Mic Mode settings will open
step 5 ) select Voice Isolation.
hence you successfully activate Voice Isolation. You don’t feel any reduction like ANC. Because this is not ANC. But other people who attended the call felt the change or noise reduction.