I installed VB-Cable on the Macbook and the Win10 laptop and I'm about 3/4 the way "there"!!
(Haven't tried to get Win10 working yet)
Using the MacBook, It took me quite a while to figure out that I needed to use "Port Audio" in WfView and get RigCTL going but I now have (analog and digital) receive going to the Macbook speakers and FreeDV radio control (PTT and freq)
I am having a bit of a problem getting audio from FreeDV --> WFview and then modulation --> the radio.
I do see "Frm Mic" audio in the Freedv scope screen but nothing at the radio (DV or Analog)
(Mic sample, 44100, VB-Cable Core-Audio sample 48000)
I "Record 2 Seconds" and when I "Play 2 Seconds" I only hear about an 800Hz tone (if I use "Buiilt-in Output)
should I change everything to 44.1kHz in the MIDI menu?
Audio devices in the Mac MIDI menu shows VB-Cable (2-ins / 2- outs)
FreeDV only shows "ID 2" in the RX/TX choices. (I thought the ID for TX/RX had to be different)
I am out of ideas....