How do I kill Apple SpeechRecognitionCore?

Catalina OS. Apple SpeechRecognitionCore is eating 30% or more of my CPU.

If I forcequit, it just comes back. It also comes back after reboot.

I think I've turned it off in various places in System Properties but it doesn't solve the problem

Help, please

MacBook Pro 15”, macOS 10.15

Posted on Jan 20, 2020 10:28 AM

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Posted on Jan 20, 2020 11:43 AM

Do this command in the Terminal followed by a return — after you have deselected Enable Voice Control in System Preferences : Accessibility : Voice Control panel. Your password will not echo when typed at the prompt.


sudo pkill -9 -x com.apple.SpeechRecognitionCore.brokerd


As this is the parent process of the process com.apple.SpeechRecognitionCore.speechrecognitiond, both will be killed with the preceding pkill command.

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Question marked as Top-ranking reply

Jan 20, 2020 11:43 AM in response to newhampster

Do this command in the Terminal followed by a return — after you have deselected Enable Voice Control in System Preferences : Accessibility : Voice Control panel. Your password will not echo when typed at the prompt.


sudo pkill -9 -x com.apple.SpeechRecognitionCore.brokerd


As this is the parent process of the process com.apple.SpeechRecognitionCore.speechrecognitiond, both will be killed with the preceding pkill command.

Jan 20, 2020 12:47 PM in response to newhampster

Disabling Voice Control in its Preferences panel does not automatically kill either SpeechRecognitionCore process, and the Terminal command is still necessary to achieve that goal afterward. However, if Voice Control remains running, it is the controlling process of the two SpeechRecognitionCore processes, and the Terminal command will be ignored — until Voice Control is disabled.


Disabling Voice Control should inherently kill the two SpeechRecognitionCore processes, but Apple carelessly omitted that cleanup step, and the orphans continue to run until killed by the user, or the system is shutdown.

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How do I kill Apple SpeechRecognitionCore?

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