It does sound exactly like mine, though, and this is the thread I started for my DDCT woes, sooo... It's all good, though, I really hope the hydraulic control unit solves my problem. Also, I hope I can figure out how to replace it, since nobody seems to have any answers to my questions. I'm not entirely shocked, most people give up when the DDCT goes awry. It's definitely not an appropriate transmission for an entry-level value-driven compact sedan. It is much better suited to a car like the Alfa Romeo 4C (where it is just as unreliable, but even more fun).
do this sounds ever pulse for you? or was it always a consistent sound?