According to this website (and a few others, but this one is my go to)
https://www.muscovyduckdynasty.com/colors-patterns
Ripple is a pattern of darker and lighter stripes on individual feathers. If you suspect your bird is ripple, you will see these stripes covering feathers mainly on the wings and tail. You may even see a few random rippled feathers on the wings or tail of solid colored birds, which could mean your bird is carrying the ripple gene.
and
When I think of barring, I think of the Barred Owl. Not to get barring confused with ripple, barring is white stripes on feathers of a bird. They appear on the head, chest, wings and sides of the bird, not on the tail. They only last for the first few months after hatch, then disappear except for a small patch underneath and between the wings, and sometimes on their undersides. Barring can sometimes reappear shortly after a molt and then disappear again.