I get crackling audio in either live view or playback with my iPhone XS Max and iOS 12. It sounds like a helicopter. Accessing the same two Wyzecam 2 with my iPhone 7 Plus and iOS 11.4, I don’t get crackling audio. This is with latest Wyze iOS app on both phones.
Anyone else with iPhone XS or XS Max experience this? I believe this may be due to iOS 12.