Diff: SpactrumAnalysisClasses/LPC_Analysis.hpp

Revision:

0:9d7f931c704a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SpactrumAnalysisClasses/LPC_Analysis.hpp	Tue Nov 24 12:34:55 2015 +0000
@@ -0,0 +1,40 @@
+//---------------------------------------------------------------
+// Class for spectrum analysis using linear prediction (Header)
+// Copyright (c) 2014 MIKAMI, Naoki,  2014/12/30
+//---------------------------------------------------------------
+
+#ifndef LPC_ANALYZER_HPP
+#define LPC_ANALYZER_HPP
+
+#include "fftReal.hpp"
+#include "Hamming.hpp"
+#include "LinearPrediction.hpp"
+
+namespace Mikami
+{
+    class LpcAnalyzer
+    {
+    public:
+        LpcAnalyzer(int nData, int order, int nFft);
+        ~LpcAnalyzer();
+        void Execute(float xn[], float db[]);
+    private:
+        const int N_DATA_;
+        const int ORDER_;
+        const int N_FFT_;
+
+        HammingWindow hm_;
+        LinearPred lp_;
+        FftReal fft_;
+
+        float* xData_;   // Data to be analyzed
+        float* an_;
+        float* xFft_;    // Input for FFT
+        Complex* yFft_;  // Output of FFT
+        float* normY_;   // Powerspectrum
+
+        float Sqr(float x) { return x*x; }
+    };
+}
+#endif  // LPC_ANALYZER_HPP
+