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What is coreaudiod and why does it run on my Mac?

Computer science   2020-06-20 15:29:14

style =max- height: 400px; max-width: 99%;> So you saw something called coreaudiodwhen navigating the activity monitor . What does this do and could it cause problems? RELATED: What is this process and why is it Running on My Mac? This article is part of our current series explaining the different processesuves in the activity monitor, like kernel_task , hidd , mdsworker , installd , WindowServer , blued , launchd , dbfseventsd and many others . You don"t know what these services are? Better start reading! This particular process, coreaudiod, is the daemon that powers Core Audio , the Low level API for sound on macOS. A daemon is a process that runs in the background of your Mac; you can identify them by the "d at the end of their name. But what is Core Audio? Well, according to the Apple Developer Portal , it basically handles everything related to sound on your Mac. On the Mac, Core Audio includes recording, editingon, playback, compression and decompression, MIDI, signal processing, file stream analysis and audio synthesis. Basically, if the sound comes out of your speaker or is recorded with a microphone, there was a part in time. For this reason, the time period will require a bit of CPU power each time you hear sound through your speakers or record something using your micropoint If your sound stops to work and that you are absolutely sure you did not do something like mute the sound or change your audio output device —Restarting the period in the activity monitor should fix the problem in cases where you would otherwise have had to restart your computer. should the period use the network? If you are using a Mac firewall like Petit vivid , you can sometimes notice a period of Korea trying to access devices on the local network. What"s going on? style = max- height: 400px; max-width: 99%;> Well, coreaudiod powers the audio part of AirPlay, which allows you to mirror your display and audio to AppleTV and a few other supported audio receivers. Sometimes coreaudiod will scan your local network to see if there are supported devices, which means that it is sometimes normal for this daemon to try to connect to local devices. If coreaudiod uses the power of your processor Users have reported that, in some cases, the folder / Library / Preferences / Audio will disappear, which will cause a massive increase in the CPU usage, even when there is no audio playback. If you notice this processor spike in / Library / Preferences / in the Finder and verify that the Audio folder is missing. According to blogger LucaTNT , you can recreate the folder yourself to solve the problem by opening the terminal and executing these two commands: sudo mkdir / Library / Preferences / Audio sudo chown -R _coreaudiod: admin / Library / Preferences / Audio The fThe first command creates the directory you need to replace; the second defines the correct permissions for the folder. Photo credit: Steinar Engeland