I once had a 7.5-horse Evinrude that sounded like this. The unanswerable question is whether he is trying to communicate, or complaining about anthropogenic noise pollution in his world.
Via Nothing To Do With Arbroath.
Addendum - a hat tip to Lexacq, who points out that this particular orca was well known:
Luna was abandoned by his pod, and bounded with boats instead in Nootka Sound, BC. This was dangerous, and tragically, led to his death by a boat.Luna's biography is detailed at Wikipedia.