Roon trouble with DSD 128 album--D2

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mintakax

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Aug 28, 2018
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I posted this on Roon support, but thought I'd try it here as well.

I was listening to a DSD 128 download of Mussorgsky: pictures at an Exhibition using Roon played through my Lumin D2. A couple of the tracks would not play properly with lots of static background, pops, buzzes and finally just stopping. This occurred in the same place every time. I recopied the file and had same issue. I played the track through the Lumin app with no issues.


In Roon, I had “Enable Native DSD processing” enabled. When I disable this setting, the problem tracks play fine. I've listened to dozens of DSD 128 tracks using Roon with Native DSD enabled with no problems, but these few tracks will just not play properly.

Ant advice on how to trouble shoot this ?
 
mintakax said:
I posted this on Roon support, but thought I'd try it here as well.

I was listening to a DSD 128 download of Mussorgsky: pictures at an Exhibition using Roon played through my Lumin D2. A couple of the tracks would not play properly with lots of static background, pops, buzzes and finally just stopping. This occurred in the same place every time. I recopied the file and had same issue. I played the track through the Lumin app with no issues.


In Roon, I had “Enable Native DSD processing” enabled. When I disable this setting, the problem tracks play fine. I've listened to dozens of DSD 128 tracks using Roon with Native DSD enabled with no problems, but these few tracks will just not play properly.

Ant advice on how to trouble shoot this ?
Click to expand...

I assume that the Lumin app is playing these files with no PCM conversion ?

EDIT: I have re-sampling setting: off in Lumin app
 
Problem goes away when I turn off Volume Leveling in Roon D2 device setup. I should have tried that first.
 
mintakax said:
Problem goes away when I turn off Volume Leveling in Roon D2 device setup. I should have tried that first.
Click to expand...

With Volume Leveling, Roon converts DSD to PCM and apply volume changes.
With Enable Native DSD processing, Roon converts PCM back to DSD for your DSD-converted-to-PCM music.

With double conversion, you get double losses with higher Roon Core CPU usage. So I don't suggest using both at the same time. As for the pops, they are likely caused by clipping in the conversion(s), as shown in the +10.7dB signal path in your Roon forum post.

It is best to leave Volume Leveling off unless you have to have that.
 
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