Good try, Mr. @Axeman!
Hey the discussion is getting intriguing…
@jofemodo --> “If would check what’s on the output of the DAC” sorry if this is a stupid question but does it mean “after the output of the Zynthian”?
Yes, after the output of Zynthian
Please, specify exactly your full audio chain. What devices are connected downstream from zynthian, what order, what type of connection, etc.
Regarding your mixer, check this:
I didn’t read the article completely, but it seems like some Mackie products having problems with audio levels when recording to digital. Perhaps it could be related …
@jofemodo --> thanks! my full audio chain is:
Zynthian -> RCA LR out or Jack LR out (I get the same noise from both) to -> Mackie 1202 VLZ4 tried all the inputs/channels (and nothing changes with a different mixer: I tried also with a Thomann the t.mix mix 802), I’m listening through my old Sony headphones or through a couple of KRK RP6 Rokit (headphones connected to the headphones out, monitors connected to the main output XLR), that’s all.
Reg the article: it’s about the old Onyx series - analog mixers with integrated digital interface, the 1202 VLZ4 is just a simple analog one and, after all, with another mixer the problem persists…
Have you tried the alsamixer from Zynthian’s command line? There are a few options there (although the default should be OK).
These options include things like “automute” feature, etc. I’ve playing with this features, but i can’t reproduce your problem. Anyway, perhaps you can use it to solve it