astippich added a comment.
I decided to store the values as string, including the "dB" unit. Another possibility would be to store them as floats, but this would require adjustments to baloo first. REPOSITORY R286 KFileMetaData REVISION DETAIL https://phabricator.kde.org/D13700 To: astippich, mgallien, bruns Cc: kde-frameworks-devel, #baloo, ashaposhnikov, michaelh, astippich, spoorun, ngraham, bruns, abrahams