My old Intelmac work fine with Proximity still but my new MacBook Pro 14" M1 does not "hear" the MX300 G2 conferencing system, or any other of our Ciscos. I see that proximity 4.0.0 is Intel compiled, is it tested for M1/M2:s? My old Intelmac still works fine with Proximity, using same latest MacOS.
Sorry, we don't have any of the new Apple hardware. There shouldn't be anything about the processor unit that prevents us from decoding ultrasound, but there might be changes to the microphone or other audio hardware that prevents ultrasound pickup... Sorry that we don't have a conclusive answer.