Yesterday, Roon released 1.5 which does first unfold of MQA. It allows DSP to occur on the MQA stream.
Apparently, there is a known issue with the current fw of Bridge II that causes many dropouts to occur when using DSP with MQA. Turning off DSP in Roon resolves the issue, or setting the DS config in Roon to decoder-only works around the issue.
Roon says they are aware of the issue and will be in touch with PS Audio/Conversdigital.
I wanted to make PS Audio aware of the issue here as well,
I needed to change this setting on my DS Jr.
Looking at the Roon 1.5 Feedback Thread last night - there was a question about (Maybe it was yours brett?) As, I canāt find it this morning. But, yes - changing the device settings: MQA Capabilities from Decoder and Renderer to just Decoder worked for me. And, MQA no longer shows in the DS Jr screen.
Roon (Brian) said they where aware DS knew of the issue.
Thatās it. I believe the Roon boys may have come up with a novel method (working with MQA) to unfold, apply DSP, and retain the authenticated info. Something isnāt happy in the BridgeII with this method but as you say, setting the DS in Roon to ādecoderā works around it for now.
I found your thread last night while Roon was updating. So, I knew exactly what to change. Hopefully weāll get an update in the not to distant future.
Not the full decode and rendering. The Bridge II is responsible for the final rendering. You would only get the first and arguably most important decode in Roon.
Youāll get something the DSJ can play for sure, I believe it will be a wav, as the unit itself canāt decode MQA.
I would suffer no stress over thisā¦Ted has said the MQA folks looked over or received a detailed flow of what heās doing in the FPGA and they had no issues with it. I read this to mean they were freaking impressed and said āyeah MQA adds nothing to the mix here. Nice job.ā
Paul, as of yesterday, Roon 1.5 performs the first unfold sending 96kHz 24-bit wav to the DS/DSJ. Currently, Bridge II isnāt happy with rendering this newly crafted Roon stream. Iāve let support know about the issue, and Roon (Brian) is also aware itās an issue.
Apparently they have. Rob from Roon reached out and said they had and that was news to me. If Rob says itās so then it must be. Iāll check with Matt n Monday and see where itās all at.
Hereās what see with Roon 1.5 and an MQA track. DSP is Off in Roon, and if I set it to Decoder only, the only thing that changes is that āDOPā is replaced with āMQAā.
I was able to restore 1.4 from backup, and will ignore their broken update until they fix it.
It appears that they donāt bother with a lot of testing, as bugs donāt get much more obvious than thisā¦
First, how do you know the ābugsā are in Roon 1.5? Second, the Roon people canāt possibly test all of the devices that are āRoon Readyā. That is usually handled by the company that makes the āRoon Readyā device.
