Microphone Change Alert
Get notified when your Mac’s default microphone changes
Use this Rule when connecting a headset or audio interface may change the Mac’s default microphone. The notification gives you a visible cue to check the input before continuing a call or recording.
When: The audio input device changes. Do: Show a notification titled Microphone Change Alert with Microphone changed to: followed by the event’s Device Name. Sound is enabled. There is no If Condition limiting notifications to a particular microphone.
Configure and try it
- Import with Open this Rule in Rulr and review the notification text. Preserve the Device Name Variable if you want to see which input was reported.
- Choose whether the notification should play a sound, especially if you use the Rule while recording.
- Allow Notifications for Rulr and enable the Rule.
- Change the system’s default audio input between two available devices and check the reported name. Repeat in the opposite direction to confirm both changes are visible.
Requirements and limits
The sample’s components are available without Pro. The Trigger declares no microphone recording permission; it observes the input-device change rather than recording audio. Notification visibility depends on macOS settings.
The Rule does not select a microphone, measure input levels, or change a meeting app’s own input setting. An app that explicitly selects another microphone may differ from the system default. For output-device control, see Switch Audio Output.
Will this stop my Mac from switching microphones?
It reports the default input change; it does not prevent or reverse it. Use the reported device name as a prompt to review your system and meeting app input choices. The notification is triggered by a change, so it is not a continuously visible microphone status indicator.