You can set the maximum resolution for your DAC in Roon. If you limit that it should downsample automatically. Under Settings, select your device and scroll down, then select Advanced Settings.
The lowest you can go is 48 kHz.
Simple device for downsampling?
Is there a device such as a DDC or something else that can be placed in the digital path prior to the DAC and set up to downsample all higher resolution digital music files from Tidal, Qobuz, and local storage (all played through Roon) to a maximum 16-bit and 44.1 or 48 kHz, to facilitate a DAC with those playback limitations?
Many Tidal/Qobuz files are already 16-bit, 44.1 kHz but almost as many are higher resolution files and I am unaware of any options within Roon to limit file resolution sent to the DAC. Back when I used a Mac mini and one of the player programs, I believe we were able to select the output sample rate but now that I solely stream stuff thorough Roon, I am not sure how I would do that. Thanks for any helpful suggestions.