dsb to obj conversion is most likely related to export of DAZ Studio graphics (.dsb) to 3D object format (.obj), something that should be certainly doable with DAZ Studio as it supports OBJ format just fine. We have not found any specific mentions about such conversion, so if you have issues with export of .dsb files, it would be best to contact DAZ Studio support or some community website.
Updated: December 20, 2022