The Audio library is heavily dependent upon the specific microcontrollers that are used in the different 3.x and 4.x boards, and doesn't support any 8 bit chips.
The Mozzi project does support 8 bit chips, I've never...
Could anyone explain the 0 ohm jumper and the address jumpers on the updated 4.x CS42448 PCB? Without a schematic I'm not sure of their intended usage.
The first requirement is that an RTOS would need to be ported/supported fort the 1170 and (possibly?) integrated into Paul's Arduino implementation. Then you would be able to create tasks and assign them to one core or...