At this time no, there is not a version of the draconic bloodline that would allow you to pickup a sonic damage version. Or any version other than the typical energy types (fire, cold, acid, elec).
No bloodlines for such, no. However, there is a Crystal Dragon (Primal) in B2 with a sonic BW. Also, the Spine Dragon of Numeria has a sonic BW. Both are VERY cool, IMO.
Sonic seems to be the domain of Bards in Pathfinder (at least for spell damage), which suits me just fine! :P