Nudge wrote:

But the real problem is:
That problem occurs only in the digital domain.
I tried the analog output and there, the crispy noise doesn't
exist. Even with a somewhat hotter signal.

I am confused. How do you listen to something _in the digital domain_?
Do you have DAC's built into your head? I have to listen in the analog
domain because I don't have digital ears.

So please articulate more clearly the actual circumstances and attendant
signal routing for when you do hear it and for when you do not hear it.

--
ha