Question about how to best output FLAC and DSF via Linux and HDMI
I have the choice of running from two different Linux laptops, via HDMI output, to my Marantz SR8002 receiver. I am not sure what setting is considered to be "the best choice." Please offer your suggestions.
On Laptop A, running MX Linux, I am running DeadBeef to play files, and I have figured out how to get it to output as either using Pulse Audio, or ALSA, and in various ways. I am mostly just interested in running 2-channel files. Which is the highest quality? If I run out of DeadBeef via ALSA, and choose to upscale my audio sources to 192k, for example, I can physically see a report from my Marantz that it's receiving data in 192k (or whatever I set it to). If I run using straight Pulse, I don't get this report, but the sound is still really good. I think I hear a slight difference between the two options, but am not sure if my ears are fooling themselves?
On Laptop B, which is running Ubuntu (no other choice on this machine, due to some kind of bios lock beyond my ability to fix) I can only run Pulse out of DeadBeef, and I get no report of receiving 192k, or anything else. But it works and sounds excellent. ALSA doesn't seem to work. Not sure why. I'd actually prefer to be able to use this laptop, because it's a much slower machine which fits into the system better. Unfortunately, I have found the CPU seems to choke on at least one file so far -- a Knights in White Satin .dsf , if I have it upscaled to 192k. The CPU cannot seem to keep up and play the file well. Sound degrades.
Can anyone explain if it is upscaling in both Pulse and DeadBeef, and/or which would be the better choice for best sound? I have noticed that Laptop A may have better low-midrange and bass, while Laptop B seems to have more detailed highs, yet could be slightly thin on low midrange/upper bass.
I am running the Marantz SR8002 using Source Direct input.
Or maybe my almost 50 year-old ears are fooling me?
"Any reviewer that didn't rail against this [Young Guns Blu-ray encode] should be sued, and Lionsgate should be ashamed of themselves. " - msgohan
Last edited by Baccusboy; 04-28-2020 at 06:08 PM.