public short[] VolumeData { get; }

Public ReadOnly Property VolumeData As Short()
	Get

public:
property array<short>^ VolumeData {
	array<short>^ get ();
}

private void Init()
{
    slm = new SoundLevelMeter();
    slm.Dock = DockStyle.Fill;
    this.Controls.Add(slm);
    IntPtr pcmFormat = AudioCompressionManager.GetPcmFormat(2, 16, 44100);
    rp.VolumeDataLength = slm.ClientSize.Width;
    rp.PropertyChanged += new PropertyChangedEventHandler(rp_PropertyChanged);
    rp.Open(new WaveReadWriter(new MemoryStream(), AudioCompressionManager.FormatBytes(pcmFormat)));
    rp.Record();
}

SoundLevelMeter slm;
RecordPlayer rp = new RecordPlayer();

void rp_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
    if (e.PropertyName == RecordPlayer.VolumeLevelProperty)
    {
        slm.Data = rp.VolumeData;
    };
}