Accord.Tests.Audio.ComplexSignalTest.ComplexSignalConstructor C# (CSharp) Method

        public void ComplexSignalConstructor()
        {
            UnmanagedMemoryStream sourceStream = Properties.Resources.a;
            MemoryStream destinationStream = new MemoryStream();

            // Create a decoder for the source stream
            WaveDecoder sourceDecoder = new WaveDecoder(sourceStream);

            // Decode the signal in the source stream
            Signal sourceSignal = sourceDecoder.Decode();

            int length = (int)Math.Pow(2, 12);

            RaisedCosineWindow window = RaisedCosineWindow.Hamming(length);

            Assert.AreEqual(length, window.Length);

            Signal[] windows = sourceSignal.Split(window, 1024);

            Assert.AreEqual(windows.Length, 172);

            foreach (var w in windows)
                Assert.AreEqual(length, w.Length);

            ComplexSignal[] complex = windows.Apply(ComplexSignal.FromSignal);

            for (int i = 0; i < complex.Length - 1; i++)
            {
                ComplexSignal c = complex[i];
                Assert.AreEqual(2, c.Channels);
                Assert.AreEqual(92, c.Duration);
                Assert.AreEqual(4096, c.Length);
                Assert.AreEqual(SampleFormat.Format128BitComplex, c.SampleFormat);
                Assert.AreEqual(44100, c.SampleRate);
                Assert.AreEqual(ComplexSignalStatus.Normal, c.Status);
            }

            complex.ForwardFourierTransform();

            for (int i = 0; i < complex.Length - 1; i++)
            {
                ComplexSignal c = complex[i];
                Assert.AreEqual(ComplexSignalStatus.FourierTransformed, c.Status);
            }
        }