如何在VB.Net的VLC插件中更改音频语言曲目？

Imports Vlc.DotNet.Core
Imports Vlc.DotNet.Core.Interops

Public Class MainForm
    Private vlcControl As VlcControl

    Public Sub New()
        InitializeComponent()

        ' 初始化VLC插件控件
        vlcControl = New VlcControl()
        vlcControl.BeginInit()
        vlcControl.VlcLibDirectory = New DirectoryInfo("VLC插件目录路径")
        vlcControl.EndInit()

        ' 将VLC插件控件添加到窗体中
        Me.Controls.Add(vlcControl)
    End Sub

    Private Sub MainForm_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        ' 设置音频语言曲目
        SetAudioLanguageTrack(1) ' 设置第二个曲目为当前语言

        ' 播放音频
        PlayAudio("音频文件路径")
    End Sub

    Private Sub SetAudioLanguageTrack(trackIndex As Integer)
        ' 获取音频对象
        Dim audio As IVlcAudio = vlcControl.VlcMediaPlayer.Audio

        ' 获取音频曲目列表
        Dim audioTracks As VlcTrackDescription() = audio.GetAudioTrackDescription()

        ' 检查曲目索引是否有效
        If trackIndex >= 0 AndAlso trackIndex < audioTracks.Length Then
            ' 设置音频曲目
            audio.SetAudioTrack(trackIndex)
        End If
    End Sub

    Private Sub PlayAudio(audioFilePath As String)
        ' 设置音频文件路径
        vlcControl.SetMedia(New FileInfo(audioFilePath))

        ' 播放音频
        vlcControl.Play()
    End Sub
End Class