New Post: reading the amplitude of a frame

//the open file dialog
//OpenFileDialog open = new OpenFileDialog();

BlockAlignReductionStream stream = null;
MeteringSampleProvider metering = null;

WaveStream pcm = WaveFormatConversionStream.CreatePcmStream(new Mp3FileReader(open.FileName));

stream = new BlockAlignReductionStream(pcm);

var wave = new SampleChannel(stream);
metering = new MeteringSampleProvider(wave);

metering.StreamVolume += new EventHandler<StreamVolumeEventArgs>(OnPost);

array = new float[2];

while (pos != stream.Length)
{
    data = metering.Read(array, 0, 2);
    pos = stream.Position;
}

private void OnPost(object sender, StreamVolumeEventArgs e)
{
    richTextBox1.Text += e.MaxSampleValues[0].ToString() + "\t";
}