: Rogue Amoeba specifically recommends updating to at least macOS 15.4 to fix a known bug where audio playback in Safari would cut out when other apps were capturing audio.
However, this feature relies on a specific technology called .
: Open Activity Monitor , search for coreaudioid , and force quit the process. soundsource not working
If SoundSource has stopped outputting sound or isn't responding, the issue is often a hung macOS audio daemon.
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: : Rogue Amoeba specifically recommends updating to at
– Corrupted audio drivers, a stuck audio jack sensor, or a failing sound card. Here, the system may think a device is working, but no electrical signal reaches the speakers.
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. If SoundSource has stopped outputting sound or isn't
Apple frequently updates its audio backend, which can cause SoundSource to "cut out" or distort.