@simon https://rogueamoeba.com/loopback/ should do the trick depending on your setup

@simon I think that depends on the app you’re using having the ability to select separate input and outputs, as well as a “passthrough” setting to pass the input to the output. I do it often in Amadeus Pro but I left my laptop’s power supply on the north island so I’m only going from memory on that.

@simon the best way to monitor audio is usually in the software you are using to record, or via hardware. The Rogue Amoeba stuff linked works great for system wide audio monitoring and beyond, little to no discernible delay on some settings

@simon there used to be an app called MIDI audio setup that I think could do that. Not sure if it is still included with the OS.

@simon I see people recommending Loopback. I needed something like Loopback when trying to do some OBS recordings in the past, and I discovered https://github.com/ExistentialAudio/BlackHole, which is OSS. I hope this helps to someone.

@simon garage band, set a track to the mic and set it on [M]onitor

@simon I do all of my audio processing through audio hijack plus black hole a loop back audio device.

@simon probably not the answer you are looking for, but the easiest way to work is to get a basic audio interface (like Focusrite etc), and a mic that plugs into its XLR rather than a USB mic. Then, the audio interface connects via USB3 to the mac. There will be dials that let you hear the mic itself, and the computer.

This is all really easy, since it’s made for musicians, not computer people.