I’m wondering how to turn off patchbox’s “direct monitoring”, where any audio coming through the system capture is apparently routed to system playback (as mentioned here).
To explain the problem I’m having more concretely: I have a usb audio interface, with the audio in connected to my phone (which is playing music), and audio out connected to some speakers. Without any audio applications open, I can hear the music playing (what I’m calling "direct monitoring). This suggests system capture is somehow being routed to system output. How do I turn this off?
I have uninstalled pulseaudio, and killed my jack server, so I really have no idea where this routing is controlled. Running ps aux doesn’t show any processes containing phrases like alsa, audio, jack, etc.
Thanks for your help!