choppy

adjective3

1. •
   Having many small, rough waves.

   • Commander Birch was a trifle uneasy when he found there was more than a popple on the sea; it was, in fact, distinctly choppy. — 1928
2. •
   Discontinuous, intermittent.

   • The sound is choppy in this video.
3. •
   Shifting, variable