public void ComputeSpectrumTest()
{
double[] srcData = new double[] {1, 2, 3, 4, 3, 2, 1, 0};
double[] expected =
new[]
{
256.0,
46.627416997969519,
0.0,
1.372583002030479,
0.0,
1.3725830020304794,
0.0,
46.627416997969519
};
Fft fft = new Fft();
DateTime start = DateTime.Now;
double[] actual = fft.ComputeAmplitudeSquareSpectrum(srcData);
TimeSpan elapsed = DateTime.Now - start;
TestContext.WriteLine("Without lookup took {0}", elapsed);
Assert.AreEqual(actual.Length, expected.Length, "Lengths are different");
for (int i = 0; i < actual.Length; i++)
{
Assert.AreEqual(expected[i], actual[i], 0.01, "Failure at index " + i);
}
}
public MainWindow()
{
InitializeComponent();
WaveRecorderSettings defaultSettings = WaveRecorderSettings.CreateDefault();
_fft = new Fft(defaultSettings.SamplesPerSecond);
_recorder = new WaveRecorder();
_recorder.SoundRecorded +=
data => Dispatcher.Invoke(new WaveRecorder.SoundRecordedAction(_recorder_SoundRecorded), data);
}