You need the following "set-up" (in synth): a front end software supporting sdrplay (e.g. sdr#) --> vb-cable --> dsd+
(btw: unfortunately sdr# do not support completely sdrplay, so, for example you cannot use useful sdr# plugin like "dsd+ plugin"
nevertheless you can run it by hands...)
Last "general available" version is DSD+ 1.101 (is what I'm using currently)
As far as I know this version supports: NXDN48/96, DMR, MotoTRBO, APCO P25 ph1, X2-TDMA, ProVoice, D-Star (no audio), dPMR(no audio)
The "general available" (= downloadable) version is rather "old". There is a newer version deployed as "fastlane"
(means you pay few dollars and they give you a link to download -- more ore less -- I never tried...).
Hope it helps.
Reason: No reason