Stream audio from your Mac to your phone
Install a virtual audio device if you haven't already done sone.

1. Start AudioRelay on your Mac

  • In the server tab, select the virtual audio device

2. Start Audio MIDI Setup (via Spotlight, for example).

  • Select the virtual audio device
  • Right click on it, then click on Use This Device For Sound Output

3. Start AudioRelay on your phone

  • Click on your Mac in the list of servers

Send sound to speakers/headphones/AudioRelay at the same time

On macOS, you can create a Multi-Output device in order to output to multiple audio devices.
  • Launch AudioRelay
    • In the player tab, select the virtual audio device
  • Launch Audio MIDI Setup (via spotlight, for example).
    • Click on the + sign in the lower left corner
    • Click on Create Multi-Output device
    • Click on this new device
    • Right click on it, then click on Use This Device For Sound Output
    • In the right pane, check your virtual audio device and your speakers for example
  • Start AudioRelay on another device and connect it to your Mac
  • You should now hear your Mac’s audio from both your Mac and the other device
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