Just got a nice new M4 iMac. Downloaded latest Audacity. Now I need to arrange for it to record sound from the computer. I used to use Soundflower for this, but that’s now dead, so I tried iShowUAudio. That refuses to install. I could use a loopback cable, but I’d need a Thunderbolt adaptor, since the machine has no other audio input, and there would be some loss of quality by going through the analogue domain.
Thanks a lot. That appears to install correctly. When I select Blackhole as the output device in Settings>Sound the sound goes off, and if I then select Blackhole (2Ch) as input, I can see the level indicator moving, so Blackhole appears to be working. I can select Blackhole as the input in Audacity, but nothing comes through.