According to this article https://support.apple.com/en-ca/guide/audio-midi-setup/ams59f301fda/mac

I should be able to use my iOS device connected via usb as a sound input.

But when I follow the instruction the input is shown and I have even enabled it, the bars are even moving but no sound is heard on the mac.

enter image description here

  • If the bars are moving I would believe the input is working fine. What program are you looking to input sound into? Apr 5, 2021 at 23:09
  • Maybe I misunderstood this but theres no program I thought, for example if I play some music on iOS I should just hear it in the mac?
    – erotsppa
    Apr 5, 2021 at 23:10
  • Ahh I don't believe that's how this functionality works. It should enable you to use your iPhone's microphone or audio output as an input into a program such as Facetime, Zoom or GarageBand. There might be a program which can instantly relay this to your speakers though. Apr 5, 2021 at 23:15
  • This might answer your question: apple.stackexchange.com/questions/11854/… Apr 5, 2021 at 23:19
  • Doesn't look like it, linein can no longe run on macOS and audio hijack doesn't do what I want.
    – erotsppa
    Apr 6, 2021 at 2:32

2 Answers 2


You need first something to capture the input, which can then be routed to an output.

Launch Quicktime Player, elect New Audio Recording & next to the red dot, select your input.
Turn up the volume slider underneath.
This should then route to your outputs, allowing playback. You don't even need to start the recording.
There will be latency, maybe as much as half a second.


Open "QuickTime Player"

Now press SHIFT + COMMAND + N (But first press Cancel if a Finder window should open)

Now select your iPhone as input (Next to the record button) and adjust the volume of QuickTime Audio.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .