Trying to play Live Radio from Roon to any endpoint using DSP (tried on a Bluesound Node, Bluesound PowerNode, and Rose RS-250) produces no sound. It looks like it is playing, signal path shows signal going all the way to the device, but no sound comes out.
Switching “Bypass all filters” (I only have convolutions for each room) gets the sound working.
Interestingly, the news station playing in my screen shot is monaural, at least both channels contain an identical signal, something I can clearly hear and also see with my roon-dynamic-range-metering-bridge.
Maybe share that mono live radio station, so I can check on my side…
In your case the audio itself might be mono, but the signal shows 2ch. In mine, the signal literally is mono - 1ch so that might be the difference.
@BrianW - aha, that would explain it. Not a showstopper for me (on the system where I want to listen to the news, I could just play it through Bluesound app) but from Roon, having to turn DSP on and off is annoying…
Another edit The second route is probably easier/preferable, it basically forces Roon to do the 2 channel conversion before applying a filter. You can just add the procedural step and save it as a mono DSP profile.
I guess that would work, too, but if I have to switch profiles for that stream, I might just as well simply disable DSP altogether. It’s a low quality local news stream, so applying room correction to it would be more of an overkill.
And then, what would the input channel be here? Being a mono stream it doesn’t have left, or right, or even LFE channels.
The single channel files present themselves as a center channel. Roon labels it 3.Centre. You can see it in the screenshot. Roon converts it to two channel as a final step Switching profiles is as easy as disabling but I see your point on quality. It was an interesting enough technical poser anyways
Ah, thanks. Then, if I make a permanent channel mapping to send Center to L/R, and if I don’t have any tracks that are anything other than stereo, will I have the original quality (+ convolution) when playing stereo files?