acml wrotedunghnguyen, I am using Cayin iDac6 as usb dac and connecting with the C2. Both 16/44.1, DSD (through DoP) also working properly without distortion.
Best Rgds.,
acml
My case is very strange, it played perfectly with Hires files without any issue, but it is very distorted for the case of wav/flac 16/44.1. Anyway I do not prefer the hires or dsd much since they are not popular now even they consume memory space a lot.
When playing Rune at the beginning, I went to MPD to switch the output to my USB DAC but there were 2 outputs enable at the same time shown in the debug. I switched between them few times till only one activated but the sound out is not clear at all.
For the case no audio from HDMI, I followed the instruction from Frank to revise the config.txt that it was done successfully now that the sound out from HDMI fed to my receiver perfectly.
But then switching the signal output to USB DAC is still distorted.
I supposed that the issue from my USB DAC but it is paired with Pi2/Rune perfectly more than a month till now. If the issue from the C2 board, I am not sure since it was tested the playing in Ubuntu MATE (Audacious player via Pulse is ok, Alsa failed - not supported yet, even the simple command in terminal window "aplay" it plays well) the signal out to USB DAC decoded well.
I used the above USB sound card, it is a normal one (dac chip is CM108, I guess since it is popular in almost usb sound card nowadays that decode up to 16/44.1) its sound out is very distorted while it is very nice sound plugged in Pi2/Rune.
We need some times more to go ... many things is still ahead as it is just the first release !
