I have a pair of headphones with an AntLion ModMic (https://antlionaudio.com) that I use for making VoIP calls with a soft phone. Everything is working properly with one small caveat -- I can't hear audio from the microphone in my headphones.

Audio input is coming from the AntLion through a Plantronics USB adapter. Audio output is coming from a USB DAC to my Sony headphones. So separate inputs and outputs.

When I use a single USB headset, the microphone audio is blended in with what I hear in the headphones and I'd like to do the same thing with the two separate sources.

The only solution I have found is to use SoundSource (http://www.rogueamoeba.com/soundsource/) and use the audio play through feature. Not the end of the world, but I was wondering if anyone had any other suggestions.

Thanks in advance!

1 Answer 1


I'm going to end up sounding like a one-man advertising campaign for Rogue Amoeba ;-)
No affiliation, merely a satisfied user, for many years

Unless you want to mess with the highly unreliable Soundflower - originally made by Cycling 74, once maintained by Rogue Amoeba but now open-sourced at GitHub - then the only way to go is something made & still supported by Rogue Amoeba.

Audio Hijack, LoopBack & SoundSource are all based on the same [reliable] technology, but tweaked for different sets of user requirements.
SoundSource is the latest - & cheapest - of their offerings.

If it does all that you need, then it's the one to go for.

  • 1
    Thank you Tetsujin for the feedback. I came to the same conclusion as well based on my research. I had already purchased SoundSource before I posted my question but thought I might be missing something, like a setting, and was overthinking it.
    – mashby
    Commented Sep 28, 2017 at 13:15
  • Is there any documentation for the Soundflower configuration? I couldn't find any since it does not have any gui.
    – alper
    Commented Jan 27, 2023 at 14:14
  • All there is, is on github. I haven't used it since it first got unreliable, about a decade ago.
    – Tetsujin
    Commented Jan 27, 2023 at 16:08

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