private void CreateChartFunction()
{
chart1.Series[0].Points.Clear();
double x, func;
for (int n = 0; n < SAMPLE_RATE * SECONDS; n++)
{
x = (double)n / SAMPLE_RATE;
func = _signal.GetVolume(x);
chart1.Series[0].Points.AddXY(x, func);
}
}