New Post: Plot a wavestream instead of a prerecorded wave-file ->> which Naudio-method to use?

Taken from an example with Naudio with a audio-recorder, I am trying to find out how the methods in Naudio works in order to replace a wave-file (that is being opened by a file dialog ->> cf. Question-line 1 below) with a wave-stream (cf. Question-line 2 below).
What I am trying to achieve is to plot a sourceStream-reocorded (buffer-like state) wavestream instead of a already saved wave-file in a winform chart:

private void button2_Click_1(object sender, EventArgs e)

    {
        if (SourceList.SelectedItems.Count == 0) return;

        int deviceNumber = SourceList.SelectedItems[0].Index;

        sourceStream = new NAudio.Wave.WaveIn();
        sourceStream.DeviceNumber = deviceNumber;
        sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(deviceNumber).Channels);

        NAudio.Wave.WaveInProvider waveIn = new NAudio.Wave.WaveInProvider(sourceStream);

        waveOut = new NAudio.Wave.DirectSoundOut();
        waveOut.Init(waveIn);

        sourceStream.StartRecording();
        waveOut.Play();
    }

    private void button3_Click_1(object sender, EventArgs e)
    {
    //// The following lines with 4 forward-slashes represents the filedialog from a button5 //// method that fitted Question-line 1:
    //// SaveFileDialog save = new SaveFileDialog();
    ////    save.Filter = "Wave File (*.wav|*.wav;)";
    ////    if (save.ShowDialog() != System.Windows.Forms.DialogResult.OK) return;

        //if (waveOut != null)
        //{
        //    waveOut.Stop();
        //    waveOut.Dispose();
        //    waveOut = null;
        //}
        //if (sourceStream != null)
        //{
        //    sourceStream.StopRecording();
        //    sourceStream.Dispose();
        //    sourceStream = null;
        //}
        textBox3.Text = "clicked2er";

Question-line 1:

        NAudio.Wave.WaveChannel32 wave = new NAudio.Wave.WaveChannel32(new NAudio.Wave.WaveFileReader(open.FileName));

Question-line 2:

        NAudio.Wave.WaveStream wave = new NAudio.Wave.WaveStream(new NAudio.Wave.WaveIn(sourceStream));

        chart1.Series.Add("wave");
        chart1.Series["wave"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.FastLine;
        chart1.Series["waveOut"].ChartArea = "ChartArea1";

    }