private void testWindow(int length, IWindow window)
{
Complex[,] data = (Complex[, ]) this.data.Clone();
ComplexSignal target = ComplexSignal.FromArray(data, 8000);
Complex[,] samples = target.ToArray();
Assert.IsTrue(data.IsEqual(samples));
ComplexSignal[] windows = target.Split(window, 1);
for (int i = 0; i < windows.Length; i++)
{
int min = System.Math.Min(i + length, samples.Length / 2);
Complex[] segment = windows[i].ToArray().Reshape(1);
Complex[] sub = samples.Submatrix(i, min - 1, null).Reshape(1);
var expected = new Complex[length * 2];
for (int j = 0; j < sub.Length; j++)
{
expected[j] = sub[j];
}
Assert.IsTrue(segment.IsEqual(expected));
}
}
/// <summary>
/// Splits a signal using a window
/// </summary>
///
/// <param name="signal">The signal to be splitted into windows.</param>
/// <param name="step">The step size, in number of frames.</param>
/// <param name="windowSize">The size of the window (in frames) when splitting the signal.</param>
///
public static ComplexSignal[] Split(this ComplexSignal signal, int windowSize, int step)
{
return(signal.Split(RaisedCosineWindow.Rectangular(windowSize), step));
}
