sound bug error civilization vi 6

Just installed Civ VI for iPad and can’t get the sounds to work. Followed some other audio suggestions I found on the net but none corrected the problem, including a new install. This is the second installed game (Baldur’s Gate) where I could get no sound to play. I ended up returning it but...

Regularly the ambient noise (i.e. the sound of the waves, wind and cicadas/crickets) stutters. It's really annoying and from what I understand it cannot be fixed by changing the sound settings to 16 bit CD quality as suggested in this thread. My rig: Gigabyte GA-B150-HD3P Intel Core i5-6500...