Enhance your app’s audio recording capabilities

import AVKit

class AppViewController {

    // Configure AudioSession

    // AVInputPickerInteraction is a NSObject subclass that presents an input picker
    let inputPickerInteraction = AVInputPickerInteraction()   
    inputPickerInteraction.delegate = self

    // connect the PickerInteraction to a UI element for displaying the picker
    @IBOutlet weak var selectMicButton: UIButton!
    self.selectMicButton.addInteraction(self.inputPickerInteraction)

    // button press callback: present input picker UI
    @IBAction func handleSelectMicButton(_ sender: UIButton) {
	    inputPickerInteraction.present()
    }
}

// AVAudioSession clients opt-in - session category option
AVAudioSessionCategoryOptions.bluetoothHighQualityRecording

// AVCaptureSession clients opt-in - captureSession property
session.configuresApplicationAudioSessionForBluetoothHighQualityRecording = true

import Cinematic

// Audio Mix parameters (consider using UI elements to change these values)
var intensity: Float32 = 0.5 // values between 0.0 and 1.0
var style = CNSpatialAudioRenderingStyle.cinematic

// Initializes an instance of CNAssetAudioInfo for an AVAsset asynchronously
let audioInfo = try await CNAssetSpatialAudioInfo(asset: myAVAsset)
    
// Returns an AVAudioMix with effect intensity and rendering style.
let newAudioMix: AVAudioMix = audioInfo.audioMix(effectIntensity: intensity,
                                                 renderingStyle: style)

// Set the new AVAudioMix on your AVPlayerItem
myAVPlayerItem.audioMix = newAudioMix

// Get Spatial Audio remix metadata from input AVAsset

let audioInfo = try await CNAssetSpatialAudioInfo(asset: myAVAsset)

// extract the remix metadata. Set on AUAudioMix with AudioUnitSetProperty()
let remixMetadata = audioInfo.spatialAudioMixMetadata as CFData