Accord.Tests.Audio.ToolsTest.GetPowerCepstrumTest C# (CSharp) Method

        public void GetPowerCepstrumTest()
        {
            // http://mi.eng.cam.ac.uk/~ajr/SpeechAnalysis/node33.html

            Complex[] source = 
            {
                (Complex)(-1.0), (Complex)(+0.5),
                (Complex)(+0.3), (Complex)(-0.4),
                (Complex)(+0.1), (Complex)(-0.9),
                (Complex)(-0.2), (Complex)(-0.5),
            };

            double[] expected = 
            {
                0.3319, 0.1285, -0.0218, 0.2303, -0.2639, 0.2303, -0.0218, 0.1285
            };

            double[] actual = Tools.GetPowerCepstrum(source);

            Assert.IsTrue(expected.IsEqual(actual, atol: 1e-4));
        }