microphone controls

Microphone Controls at WWDC 2024

Sessions Mentioned:

1. Capture HDR content with ScreenCaptureKit
2. What’s new in SwiftUI
3. Enhance your spatial computing app with RealityKit audio
4. Optimize for the spatial web

Key Points:

1. ScreenCaptureKit:

   • Microphone Capture: The SCStream configuration now includes properties to capture microphone audio. You can set captureMicrophone to enable microphone capture and specify the microphoneCaptureDeviceID to choose which microphone to use. This allows your app to capture screen, system audio, and microphone audio simultaneously.
   • Code Example: Create a stream configuration, set the microphone properties, and start capturing. The samples can be received using the SCStreamOutput and written to a file using the new API.
   • Capture HDR content with ScreenCaptureKit (07:14)

2. SwiftUI:

   • Microphone in Immersive Spaces: In VisionOS, you can create immersive experiences with volumes and control elements like a microphone. The microphone can be made to rotate to always face the user using the onVolumeViewpointChange modifier.
   • What’s new in SwiftUI (19:43)

3. RealityKit Audio:

   • Audio Mixer: RealityKit allows you to control different categories of audio, including microphone input, using an audio mixer. You can adjust the levels of each category to create the desired audio experience.
   • Enhance your spatial computing app with RealityKit audio (20:41)

4. Spatial Web:

   • Voice Input: Vision Pro supports voice input for text fields and more flexible voice interactions through the Web Speech API. This includes both speech recognition and synthesis, allowing for real-time voice interaction.
   • Optimize for the spatial web (08:34)

These sessions provide comprehensive insights into how microphone controls and audio management are integrated into various Apple platforms and frameworks.