DSP Up-Sampling features in Roon 1.3

@ Brian: If you want beta testers for future SRC/SDM algorithms, let us know. Since we are the only manufacturer out there to my awareness who build’s a DAC to run at DSD 256 only, and use software based SRC/SDM, we’re in a great position for this. How difficult would it be to implement the open source SoX DSD algo’s?