public void FourierTransform_16384_length_2000000_iterations()
{
var transformProvider = new ProviderFake();
var windowFunction = new BlackmanHarrisWindowFunction();
var target = new FourierTransform(
transformProvider,
windowFunction,
4096 * 4);
target.Format = new WaveFormat(44100, 1);
var buffers = new float[][] { new float[64] };
for (int i = 0; i < 2000000; i++)
{
target.Process(buffers, 64);
}
}
public void Should_correctly_calculate_window_function_coefficients()
{
var target = new BlackmanHarrisWindowFunction();
var expected = new float[]
{
0.00006f,
0.0109823309f,
0.103011489f,
0.385892659f,
0.7938335f,
1.0f,
0.7938335f,
0.385892659f,
0.103011489f,
0.0109823309f,
0.00006f
};
var actual = target.CalculateCoefficients(10);
CollectionAssert.AreEqual(expected, actual, new FloatComparer());
}
public void Should_throw_if_filter_order_is_negative()
{
var target = new BlackmanHarrisWindowFunction();
target.CalculateCoefficients(-1);
}
