使用AKSequencer和AKSampler链接时没有声音

let sampler = AKSampler()
try sampler.loadWav("path/to/your/audio/file.wav")

let sequencer = AKSequencer()
sequencer.setGlobalMIDIOutput(sampler.midiIn)

// 添加采样器到音频引擎
audioEngine.connect(sampler, to: audioEngine.outputNode, format: nil)

// 启动音频引擎和序列器
try audioEngine.start()
sequencer.start()

audioEngine.connect(audioEngine.outputNode, to: audioEngine.mainMixerNode, format: nil)

sampler.volume = 1.0
sequencer.volume = 1.0

sampler.pitchBend = 0
sampler.loopEnabled = true

import AudioKit

// 初始化音频引擎
let audioEngine = AudioEngine()

// 初始化采样器并加载音频文件
let sampler = AKSampler()
try sampler.loadWav("path/to/your/audio/file.wav")

// 初始化序列器
let sequencer = AKSequencer()
sequencer.setGlobalMIDIOutput(sampler.midiIn)

// 连接采样器到音频引擎的输出节点
audioEngine.connect(sampler, to: audioEngine.outputNode, format: nil)

// 启动音频引擎和序列器
try audioEngine.start()
sequencer.start()

// 确保音量设置正确
sampler.volume = 1.0
sequencer.volume = 1.0