If Siri on Mac doesn’t work as expected
If you’re having trouble using Siri, try these solutions.
Make sure your Mac is connected to the internet. Choose Apple menu > System Preferences, then click Network.
Make sure Siri is turned on. Choose Apple menu > System Preferences, click Siri, then select Enable Ask Siri.
Make sure your Mac has a microphone and that it’s not obstructed by your clothing or body or other objects.
If you’re using an external microphone, check that it’s connected to your Mac, selected below Input in Sound preferences, and that the mic’s input volume is set high enough.
Choose Apple menu > System Preferences, click Sound, click Input, then drag the “Input volume” slider.