如何在LibVLCSharp中控制音频的音调偏移？

var mediaPlayer = new LibVLCSharp.Shared.MediaPlayer(libVLC);
var media = new LibVLCSharp.Shared.Media(libVLC, new Uri("path_to_audio_file"));
mediaPlayer.Media = media;

mediaPlayer.SetAudioTrack(-1); // 选择默认音轨
mediaPlayer.SetRate(1.0f); // 设置音频播放速度为正常速度
mediaPlayer.SetEqualizer(new[] { new LibVLCSharp.Shared.EqualizerBand(0, 0) }); // 设置均衡器
mediaPlayer.SetAudioOutputCallbacks(null, null); // 设置音频输出回调
mediaPlayer.SetAudioOutput("directsound"); // 设置音频输出
mediaPlayer.SetAudioOutputDevice("default"); // 设置音频输出设备
mediaPlayer.SetAudioOutputVolume(100); // 设置音频输出音量

mediaPlayer.Play();