Real-time spectrum analyzer for ST Nucleo F401RE using Seeed Studio 2.8'' TFT Touch Shield V2.0.
Dependencies: SeeedStudioTFTv2 UITDSP_ADDA UIT_FFT_Real mbed
SpactrumAnalysisClasses/LPC_Analysis.hpp
- Committer:
- MikamiUitOpen
- Date:
- 2015-07-26
- Revision:
- 0:c5b026c2d07e
File content as of revision 0:c5b026c2d07e:
//--------------------------------------------------------------- // 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 "PeakHolder.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_; PeakHolder* pkHolder_; 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