I'm trying to figure out if there's a way to apply DSP/EQ from an analogue input source through to my speakers.
I'm specifically after the 'Listening Modes' EQ (circular GUI) offered by HiFiBerryOS when a DSP card is attached.
My setup looks like:
Turntable/pre-amp (analogue out) --> [???] --> Speakers
I know the '2x2 Add-on for DAC+ DSP' is no longer available, and I have signed up for the mailing list in case any new/beta products become available like it again.
What I'm wondering though, in the meantime -- could this be achieved somehow using multiple Pi's & HiFiBerry cards?
One example I thought of was:
Source (analogue out) --> Pi1 [DAC+ ADC] --> Pi2 [DAC+ DSP] --> Speakers
However I don't believe this would work, since HiFiBerry does not support USB as a sound interface(?) and thus there would be no way to get the digital audio from Pi1 to Pi2.
Does anyone know if there might be a way this can be achieved?