---
title: System video effects and microphone modes
framework: avfoundation
role: collectionGroup
role_heading: API Collection
path: avfoundation/system-video-effects-and-microphone-modes
---

# System video effects and microphone modes

Configure the state of system video effects like Center Stage, and inspect enhancements the system applies to microphone audio.

## Topics

### Performing reaction effects

- [reactionEffectsEnabled](avfoundation/avcapturedevice/reactioneffectsenabled.md)
- [canPerformReactionEffects](avfoundation/avcapturedevice/canperformreactioneffects.md)
- [availableReactionTypes](avfoundation/avcapturedevice/availablereactiontypes.md)
- [reactionEffectGesturesEnabled](avfoundation/avcapturedevice/reactioneffectgesturesenabled.md)
- [performEffect(for:)](avfoundation/avcapturedevice/performeffect(for:).md)
- [reactionEffectsInProgress](avfoundation/avcapturedevice/reactioneffectsinprogress.md)
- [AVCaptureReactionEffectState](avfoundation/avcapturereactioneffectstate.md)

### Configuring Center Stage

- [isCenterStageActive](avfoundation/avcapturedevice/iscenterstageactive.md)
- [isCenterStageEnabled](avfoundation/avcapturedevice/iscenterstageenabled.md)
- [centerStageRectOfInterest](avfoundation/avcapturedevice/centerstagerectofinterest.md)
- [centerStageControlMode](avfoundation/avcapturedevice/centerstagecontrolmode-swift.type.property.md)
- [AVCaptureDevice.CenterStageControlMode](avfoundation/avcapturedevice/centerstagecontrolmode-swift.enum.md)

### Configuring Studio Light

- [isStudioLightActive](avfoundation/avcapturedevice/isstudiolightactive.md)
- [isStudioLightEnabled](avfoundation/avcapturedevice/isstudiolightenabled.md)

### Inspecting the Portrait Effect settings

- [isPortraitEffectActive](avfoundation/avcapturedevice/isportraiteffectactive.md)
- [isPortraitEffectEnabled](avfoundation/avcapturedevice/isportraiteffectenabled.md)

### Inspecting the microphone mode

- [activeMicrophoneMode](avfoundation/avcapturedevice/activemicrophonemode.md)
- [preferredMicrophoneMode](avfoundation/avcapturedevice/preferredmicrophonemode.md)
- [AVCaptureDevice.MicrophoneMode](avfoundation/avcapturedevice/microphonemode.md)

### Presenting the configuration user interface

- [showSystemUserInterface(_:)](avfoundation/avcapturedevice/showsystemuserinterface(_:).md)
- [AVCaptureDevice.SystemUserInterface](avfoundation/avcapturedevice/systemuserinterface.md)

### Configuring background replacement

- [isBackgroundReplacementActive](avfoundation/avcapturedevice/isbackgroundreplacementactive.md)
- [isBackgroundReplacementEnabled](avfoundation/avcapturedevice/isbackgroundreplacementenabled.md)