public void Should_provide_the_FFT_provider_result_via_the_DataReady_event()
{
var buffers = new float[][] { new float[4] };
var expected = new float[]
{
5f, 6f, 7f, 8f
};
transformProvider.FFT(Arg.Any <bool>(), Arg.Any <int>(), Arg.Do <Complex[]>(x =>
{
x[0] = new Complex {
X = expected[0], Y = 0f
};
x[1] = new Complex {
X = expected[1], Y = 0f
};
x[2] = new Complex {
X = expected[2], Y = 0f
};
x[3] = new Complex {
X = expected[3], Y = 0f
};
}));
target = new FourierTransform(transformProvider, windowFunction, 4);
float[] actual = null;
target.DataReady += (s, e) => actual = e.Real;
target.Format = new WaveFormat(44100, 1);
target.Process(buffers, 4);
CollectionAssert.AreEqual(expected, actual, new FloatComparer());
}
private void calculateTransform(ChannelData channel)
{
for (int i = 0; i < transformLength; i++)
{
channel.Complex[i] = new Complex
{
X = channel.InputHistory[i] * window[i],
Y = 0f
};
}
transformProvider.FFT(true, m, channel.Complex);
var e = new FourierTransformEventArgs(
transformLength,
channel.Index,
channel.Complex);
if (DataReady != null)
{
DataReady.Invoke(this, e);
}
}