可以在Apple Watch上同时播放多个声音文件(就像混音一样)吗？

import AVFoundation

// 创建AVAudioEngine实例
let audioEngine = AVAudioEngine()

// 创建AVAudioPlayerNode实例
let playerNode1 = AVAudioPlayerNode()
let playerNode2 = AVAudioPlayerNode()

// 创建AVAudioFile实例
let audioFile1 = try AVAudioFile(forReading: URL(fileURLWithPath: "sound1.wav"))
let audioFile2 = try AVAudioFile(forReading: URL(fileURLWithPath: "sound2.wav"))

// 将AVAudioPlayerNode连接到AVAudioEngine的主混音节点
audioEngine.attach(playerNode1)
audioEngine.attach(playerNode2)
audioEngine.connect(playerNode1, to: audioEngine.mainMixerNode, format: nil)
audioEngine.connect(playerNode2, to: audioEngine.mainMixerNode, format: nil)

// 启动AVAudioEngine
try audioEngine.start()

// 播放声音文件
playerNode1.scheduleFile(audioFile1, at: nil, completionHandler: nil)
playerNode2.scheduleFile(audioFile2, at: nil, completionHandler: nil)
playerNode1.play()
playerNode2.play()