SoundSource has a feature that remembers settings per-device. You plug in your AirPods, it automatically switches to your "Bass Boost" preset. You unplug them, it goes back to normal.
This usually requires a "forced" restart. Not just closing the app, but right-clicking the SoundSource icon in the menu bar and selecting "Quit SoundSource," then reopening it. This forces ACE to reload its drivers.
You usually have to go into System Settings -> Privacy & Security -> Microphone (and sometimes Accessibility) and re-toggle the permission for SoundSource. You are essentially telling the bouncer, "No, I actually invited this guy." soundsource not working
SoundSource is designed to step aside when other high-priority audio apps take over.
Troubleshooting is a process of elimination: check physical connections, test with another app, restart the audio service, or roll back recent updates. Often, the fix is embarrassingly simple—the volume was muted, or the headphones were plugged into the wrong jack. SoundSource has a feature that remembers settings per-device
Here’s a short diagnostic-style text on the issue, written in a troubleshooting or explanatory tone.
To understand the underlying technical issues, we need to examine the signal flow and processing chain of the Sound Source system. The signal flow typically involves the following stages: This usually requires a "forced" restart
When the Room Falls Silent: Diagnosing “Sound Source Not Working”
Many users on have reported that SoundSource fails to enable Accessibility even if it appears "On" in settings.
If SoundSource launches and the menu bar icon shows up, but the volume sliders do nothing, ACE has likely crashed. This is interesting because it turns your audio into a one-way street. The audio leaves the app, but the "fork in the road" that SoundSource builds to split the audio never got constructed. The audio defaults to the system output, ignoring SoundSource’s instructions entirely.
