On Air: Mic In Use for Windows

For meetings, calls and streams: see on your Stream Deck whether an app is recording from a microphone of your Windows PC right now, and which app. The key turns red (IN USE or ON AIR) while a mic is in use and goes back to OFF when the app stops.

Features

Mic In Use: red IN USE and the app's name while an app records from a mic

On Air: an on-air light on a key, a big red ON AIR lamp while an app records, with the app; OFF AIR otherwise

Several apps at once: one name and "+1"

All recording devices are watched (headset, webcam mic, USB mic)

On Air can ignore apps you name (a voice assistant, for example)

Press: open the Windows microphone privacy settings

Updates every second

English and Japanese

Privacy

It never listens to the microphone. It only asks Windows (Core Audio) which apps have a recording stream running.

No account, no telemetry; nothing is sent anywhere.

Requirements and limits

Windows 10 or later, Stream Deck app 6.9 or later

Read only: it does not mute, turn off or block anything, and it changes no setting

It does not watch the camera

A mute switch on the microphone or headset itself is invisible to Windows: the key stays IN USE

An app that is muted but keeps recording still counts as IN USE

When Windows does not answer, the keys show "--"

Not a security tool: it shows only what Windows reports

Idea or bug? Use the Support link. Every message is read.

First release with two actions. Mic In Use shows whether an app is recording from a microphone right now, and which app. On Air is a red lamp while any app records. Read only. English and Japanese.