youtube (dot) com/watch?v=lb7ZpMThGgk

At the very start, it sounds like a "booble wooble". Do you have an idea on how recreate that particular sound? I'm not looking for the specific breakbeat, but that "bubble" sound.
You can hear that sound throughout the all song (1:00 to 1:07, etc). What kind of waves and techniques? Or it is just a sample? If that's the case, how can I find it?