I found this: https://www.head-fi.org/threads/bit-perfect-audio-from-linux.561961/post-12442071
I have an iDAC-6 at home, set up mpd to output DSD over PCM but it still downsamples to 352.8MHz. It seems that ALSA doesn’t detect the DAC as DoP capable device.
Alrighty.
What DSD format’s you are trying?
DSD 64 (dff files)
mpd: 0.19.10 (from Packman repository)
Advanced Linux Sound Architecture Driver Version k4.1.15-8-default.
And some posts later somebody wrote:
“The DSD to PCM conversion process converts from 1-bit DSD to 64-bit PCM at 1/8th of the DSD sample rate. The total amount of data from this conversion grows by 8x, so the process is effectively lossless / perfect. Once you have PCM, it will be 64bit @ 352.8 kHz for DSD”
There you go, apparently that is perfectly normal for DSD64. Just for me personally: do either of your dac’s allow straight dsd without dop? I kind of wish i had one on hand to play with for future dsd based problems.
I have no understanding about this audio technical stuff, but it seems like it is working in 2015 on System: OpenSUSE Leap 42.1, mpd 0.19.10, Cantata 2.0.0?!