Looking at a few loopback apps, capturing the audio stream from a specific application seems to be possible. Would it be a lot of effort to get this feature in Vuo as well? Without an external audio interface, capturing/loopback interfaces are by far the biggest pita when it comes to implementing audio reactiveness in the compositions. I usually hook up an external device when performing with the compositions, but for programming I'm just too lazy to set it up/don't have it at home (it is also difficult enough balancing the laptop on my lap when travelling by boat).


Notes from Team Vuo

Vuo Pro: 

Yes — requires a Vuo Pro license


●●●○ — A few months of work


●○○ — Appeals to current community


Soundflower is unfortunately

MartinusMagneson's picture
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Soundflower is unfortunately too buggy. I get a lot of latency and dropouts/scratching/noise in combination with Vuo, and it's a bit of fumbling about every time (not much, but still..).It is also grabbing the audio at the main outs.

I'm thinking more about something like rogue amoebas solution Audio Hijack (https://rogueamoeba.com/audiohijack/). This lets you grab the audio coming at an application level instead of grabbing the i/o. I think this is a feature within the core audio api as far as I've understood.


I could maybe look into it myself, but this would be a bit (a lot) on the challenging side for me. Also not sure where the I/O interfacing with the OS would recide in the Vuo Api.

OK, good to know. We'll have

jstrecker's picture
Submitted by
Feature status:
Waiting for more information from reporter
Waiting for review by Team Vuo

OK, good to know. We'll have to do some research before we can open this for voting. Not sure how a macOS application is supposed to capture per-application audio these days. It used to be that you implemented a HAL driver, but that seems to no longer be supported. If you happen to find any info about this (or decide you want to take it on yourself), please let me know. I imagine the structure of the code for this would look something like the vuo.audio.receive node class, VuoAudio library, and other related libraries.

Feature status

  • Submitted to vuo.org
  • Reviewed by Team Vuo
  • Open for community voting
  • Chosen to be implemented
  • Released

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