private void causal_Click(object sender, EventArgs e)
{
int windowSize;
int hopSize;
int filterSize;
int fc;
int.TryParse(this.WindowSize.Text, out windowSize);
int.TryParse(this.R.Text, out hopSize);
int.TryParse(this.L.Text, out filterSize);
int.TryParse(this.Fc.Text, out fc);
Stopwatch time = new Stopwatch();
time.Start();
float[] result = _audio.FrequencyFiltration(windowSize, filterSize, fc, hopSize, windowType.SelectedIndex, "casual");
time.Stop();
MessageBox.Show(time.ElapsedMilliseconds.ToString() + " ms");
#region filterChar
CharWindow resultSignalChar = new CharWindow();
resultSignalChar.setPropert();
resultSignalChar.Histogram.Series.Add("WindowCharm");
resultSignalChar.Text = "SignalChar";
resultSignalChar.Histogram.Series["WindowCharm"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.FastLine;
resultSignalChar.Histogram.Series["WindowCharm"].MarkerSize = 2;
resultSignalChar.Histogram.ChartAreas[0].AxisX.Title = "Index";
resultSignalChar.Histogram.ChartAreas[0].AxisY.Title = "signal value";
for (int i = 0; i < result.Count(); i++)
{
resultSignalChar.Histogram.Series["WindowCharm"].Points.AddXY(i, result[i]);
}
resultSignalChar.Show();
#endregion
SoundUtil.SaveSound("freqCasualFilter", _audio.fileName, _audio.sampleRate, result);
}