Wow, that's...pretty corny. That, supposedly coming out of Ben Kenobi's mouth, is just wrong.
I must admit, I actually never thought the original howl worked all that well. To me, it sounded too much like it came from the Tusken Raiders; it was too similar to their noises. The howl was on The Story Of Star Wars LP too (which I listened to constantly), and the narration there didn't explain that it was Ben Kenobi making it, so again it seemed like it was the Tusken Raiders.
According to the novel (IIRC) it was supposed to be a Krayt Dragon call, and that's why the Sandpeople ran away. In my mind it should have sounded a little more Krayt Dragon-like, and less Tusken-like.
But it was an extremely minor quibble, and I got used to it and accepted it. This new howl is a dreadful mistake.
--SKot