Roon chokes converting DSD 128 to PCM 176 - HQPlayer doesn't

[Rugby (aka Daniel or Big Dan)]

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Struggles getting Native DSD processing to work

I think you understand the underlying tech, but the use of “decimation” is not appropriate in this context. The word decimation, in a DSP context, refers to a process that reduces the sampling rate–something that is not happening here. Changing from a single bit to multi-bit format in this situation is a completely lossless process–in fact, there isn’t even information loss (even in a discrete mathematical sense) until you begin processing the multi-bit form. Which of course happens immediatel…