Roon’s EQ and DSD

Out of curiosity, with Roon’s ability to apply DSP EQ effects to DSD, does Roon downsample DSD to PCM, applies the EQ, and then upsamples back to PCM? Or does the signal remain DSD all the way through?

I don’t understand it but

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For any DSP on DSD media it is first converted to the equivalent PCM rate then has DSP applied then if your DAC can handle native DSD it will convert back before sending it on, it it can send PCM.

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