如何在#ARKit场景中使用SCNAudioSource配置一个类似于'isPositional‘的实时位置AudioKit播放器？

import SceneKit
import ARKit
import AudioKit

class ViewController: UIViewController, ARSCNViewDelegate {
    
    var audioPlayer: AVAudioPlayer?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let sceneView = ARSCNView(frame: view.frame)
        view.addSubview(sceneView)
        
        let scene = SCNScene()
        sceneView.scene = scene
        
        // 创建一个SCNNode对象来表示音频源的位置
        let audioNode = SCNNode()
        audioNode.position = SCNVector3(x: 0, y: 0, z: -1) // 设置音频源的位置
        
        // 创建一个SCNAudioSource对象
        let audioSource = SCNAudioSource(fileNamed: "audioFile.mp3")!
        audioSource.volume = 1.0 // 设置音频源的音量
        audioSource.isPositional = true // 设置音频源为位置音频
        
        // 创建一个实时位置AudioKit播放器
        let audioEngine = AVAudioEngine()
        let player = AVAudioPlayerNode()
        audioEngine.attach(player)
        audioEngine.connect(player, to: audioEngine.mainMixerNode, format: nil)
        
        // 将SCNAudioSource对象分配给SCNNode对象的audioSource属性
        audioNode.addAudioPlayer(SCNAudioPlayer(source: audioSource))
        
        // 将SCNNode对象添加到ARKit场景中的适当位置
        scene.rootNode.addChildNode(audioNode)
        
        // 开始播放音频
        do {
            try audioEngine.start()
            player.play()
        } catch {
            print("Failed to start audio engine: \(error)")
        }
    }
    
    // ARSCNViewDelegate方法
    func renderer(_ renderer: SCNSceneRenderer, updateAtTime time: TimeInterval) {
        // 更新音频源的位置，使其与虚拟物体相对应
        if let frame = sceneView.session.currentFrame {
            let cameraTransform = SCNMatrix4(frame.camera.transform)
            let audioNode = sceneView.scene.rootNode.childNode(withName: "audioNode", recursively: true)
            audioNode?.simdTransform = cameraTransform
        }
    }
}