Topic: ADI 2 Pro - problem playing back extreme high-res (Ubuntu)
I am using a dual machine audio playback system with my ADI 2 Pro where Hqplayer on my Macbook Pro is feeding an Ubuntu - based ARM CPU driven nano PC using Hqplayer's NAA solution. The NAA app runs on the Ubuntu - based Cubox (Hummingboard) SoC. When i am trying to playback upconverted files above 384 kHz (up to 768 kHz) or DSD 128x (up to DSD 256x) there is some strange noise repeatedly, in every 30-40 sec for 3-5 sec. It happens in 704 and 768 kHz and 44x 256, 48kHz x 256 in DSD as well, in a different way however.
I tried all sorts of other D/A converters, none shows the same problem, so I think it is related to ADI 2 Pro and its firmware or someway the relationship of it to ALSA. Otherwise the ADI 2 Pro unit sounds really nice, I like it a lot, there is a very limited chance to use it at those very high sampling rates, but it would be nice to get it work there too.