public void TestNormalA()
{
FeatureVectorBuffer buffer = new FeatureVectorBuffer();
Chroma chroma = new Chroma(10, 510, 256, 1000, buffer);
double[] frame = new double[128];
frame[113] = 1.0;
chroma.Consume(frame);
Assert.AreEqual(12, buffer.features.Length);
double[] expected_features = {
1.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
};
for (int i = 0; i < 12; i++)
{
Assert.AreEqual(expected_features[i], buffer.features[i], 0.0001);
}
}
public void TestNormalB()
{
FeatureVectorBuffer buffer = new FeatureVectorBuffer();
Chroma chroma = new Chroma(10, 510, 256, 1000, buffer);
FFTFrame frame = new FFTFrame(128);
frame.Data[64] = 1.0; // 250 Hz
chroma.Consume(frame);
Assert.AreEqual(12, buffer.features.Length);
double[] expected_features = {
0.0, 0.0, 1.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
};
for (int i = 0; i < 12; i++)
{
Assert.AreEqual(expected_features[i], buffer.features[i], 0.0001);
}
}
public void TestInterpolatedB()
{
FeatureVectorBuffer buffer = new FeatureVectorBuffer();
Chroma chroma = new Chroma(10, 510, 256, 1000, buffer);
chroma.Interpolate = true;
FFTFrame frame = new FFTFrame(128);
frame.Data[64] = 1.0;
chroma.Consume(frame);
Assert.AreEqual(12, buffer.features.Length);
double[] expected_features = {
0.0, 0.286905, 0.713095, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
};
for (int i = 0; i < 12; i++)
{
Assert.AreEqual(expected_features[i], buffer.features[i], 0.0001);
}
}
public void TestInterpolatedGSharp()
{
FeatureVectorBuffer buffer = new FeatureVectorBuffer();
Chroma chroma = new Chroma(10, 510, 256, 1000, buffer);
chroma.Interpolate = true;
double[] frame = new double[128];
frame[112] = 1.0;
chroma.Consume(frame);
Assert.AreEqual(12, buffer.features.Length);
double[] expected_features = {
0.401354, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.598646,
};
for (int i = 0; i < 12; i++)
{
Assert.AreEqual(expected_features[i], buffer.features[i], 0.0001);
}
}
