DAZ Studio supports both export and import of Collada 3D Digital Assets files (.dae), so it would be the obvious choice for dsb to dae conversion. It appears that DAZ Studio formats are pretty limited, so using 3rd party programs for this conversion may not be possible.
Convert DAZ Studio graphics file to Collada 3D digital asset exchange data.
We found 2 software records in the database related to .dsb to .dae file format conversion.
Microsoft Windows software - convert dsb to dae on Windows
A 3D animation software
Convert from dsb file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned dsb to dae. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert dsb to dae on OS X
A Mac version of the popular modeling tool