No. coreaudiod handles all sound on the Mac.
It runs as _coreaudiod and isn't network-related itself.
When sound disappears or devices don't show up, restarting coreaudiod is the classic fix, since macOS relaunches it straight away. AirPlay audio is routed through it to AirPlay services that do the networking, so coreaudiod itself rarely appears with connections.
Facts
- Owner
- Apple (part of macOS)
- Network-related
- No
- Block it?
- Don’t block it
Should you worry?
No. coreaudiod handles all sound on the Mac. If audio stops working or crackles, restarting it often fixes it: sudo killall coreaudiod (it restarts automatically).
Frequently asked questions
What is coreaudiod?
The macOS Core Audio daemon that manages audio devices and mixes sound from every app.
How do I restart coreaudiod?
Run sudo killall coreaudiod in Terminal. macOS restarts it immediately, which often fixes sound problems.
Does coreaudiod use the internet?
No. It handles local audio; network audio like AirPlay goes through other system services.