Enhance your app’s audio experience with AirPods

8:25 - Press to Mute and Unmute API

// Adopting AVAudioApplication into your App
import AVFAudio

// Get the started instance 
let instance = AVAudioApplication.shared

// Register for mute gesture notifications on Notification Center 
AVAudioApplication.inputMuteStateChangeNotification

// Key for mute state
AVAudioApplication.muteStateKey

// Updating AVAudioApplication’s mute state
instance.setInputMuted(...)

// Reading AVAudioApplication’s mute state
instance.isInputMuted

10:52 - Configure the Input Mute State Change handler (macOS only)

// Configure the Input Mute State Change handler (macOS only)
instance.setInputMuteStateChangeHandler { isMuted in
	//...
	return didSucceed
}

// Optional: let CoreAudio mute your input for you (macOS only)
// Define the Core Audio property
var inputeMutePropertyAddress = AudioObjectPropertyAddress(
	mSelector: kAudioHardwarePropertyProcessInputMute,
	mScope: kAudioObjectPropertyScopeInput,
	mElement:kAudioObjectPropertyElementMain)

// Enable this property when you want to mute your input
UInt32 isMuted = 1; // 1 = muted, 0 = unmuted
AudioObjectSetPropertyData(kAudioObjectSystemObject,
						   &inputeMutePropertyAddress,
						   0,
						   nil,
						   UInt32(MemoryLayout.size(ofValue: isMuted),
						   &isMuted)