Roon supports Devialet AIR

[Will]

Those are both rather bold statements -- care to elaborate on why you think that?

Quite simply - I am experiencing similar problems as with Devialet Air - intermittent crackling - perhaps not as severe or as frequent as Devialet Air, but I have only listened to about four hours worth of music so far!  I think the sound quality is fantastic - so I hope it is resolved.  The second comment is a conclusion (perhaps wrong) based on my observation.  I am not the only one to report this - as a similar (if more tentative) observation has reported on the Roon discussion forum. 

I do not experience similar problems with other wifi audio services such as Bluesound and Google Chromecast.

I've also heard some crackling at times but every time it happens I know it is because i've just made some change that asks too much of the processor. It's not white noise though, just the odd crackle. Roon makes it quite clear in their manuals that Roon requires a LOT of processing power and that if you don't have that, there will be trouble.

Have you tried increasing the buffer? I just increased it to 1 second. So far not a crackle.

Thanks Pim, I will give it a go.  I do like the sound of Roon - it is as least as good as Devialet AIR.  And I can live with an occasional crackle - after all I did used to listen to vinyl    I just I hope I can get it to work!