Final version.
Dependencies: F746_GUI F746_SAI_IO UIT_FFT_Real
Fork of F746_Spectrogram by
MySpectrogram/AnalysisBase.hpp@9:444e58089d09, 2017-08-30 (annotated)
- Committer:
- mladjo1993
- Date:
- Wed Aug 30 07:47:58 2017 +0000
- Revision:
- 9:444e58089d09
- Parent:
- 8:99d57d6e0ea1
Final version.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mladjo1993 | 7:23b60827582d | 1 | /******************************************************** |
mladjo1993 | 7:23b60827582d | 2 | * Base abstract class for spectrum analysis (Header) |
mladjo1993 | 7:23b60827582d | 3 | * |
mladjo1993 | 7:23b60827582d | 4 | * Mladen Adamovic, 3326/2016 |
mladjo1993 | 7:23b60827582d | 5 | ********************************************************/ |
mladjo1993 | 7:23b60827582d | 6 | |
MikamiUitOpen | 0:9470a174c910 | 7 | #ifndef BASE_ANALYZER_HPP |
MikamiUitOpen | 0:9470a174c910 | 8 | #define BASE_ANALYZER_HPP |
MikamiUitOpen | 0:9470a174c910 | 9 | |
MikamiUitOpen | 2:1f092ac020e1 | 10 | #include "Array.hpp" |
MikamiUitOpen | 0:9470a174c910 | 11 | #include "fftReal.hpp" |
MikamiUitOpen | 0:9470a174c910 | 12 | #include "Hamming.hpp" |
MikamiUitOpen | 0:9470a174c910 | 13 | |
mladjo1993 | 8:99d57d6e0ea1 | 14 | namespace etf |
MikamiUitOpen | 0:9470a174c910 | 15 | { |
MikamiUitOpen | 0:9470a174c910 | 16 | class AnalyzerBase |
MikamiUitOpen | 0:9470a174c910 | 17 | { |
MikamiUitOpen | 0:9470a174c910 | 18 | public: |
MikamiUitOpen | 0:9470a174c910 | 19 | // nData: Number of data to be analyzed |
MikamiUitOpen | 0:9470a174c910 | 20 | // nFft: Number of FFT points |
MikamiUitOpen | 0:9470a174c910 | 21 | // nUse: FFT, cepstrum: window width + zero padding |
MikamiUitOpen | 0:9470a174c910 | 22 | // Linear prediction: window width |
MikamiUitOpen | 0:9470a174c910 | 23 | AnalyzerBase(int nData, int nFft, int nUse); |
MikamiUitOpen | 2:1f092ac020e1 | 24 | virtual ~AnalyzerBase() {} |
MikamiUitOpen | 0:9470a174c910 | 25 | void Execute(const float xn[], float db[]); |
MikamiUitOpen | 0:9470a174c910 | 26 | |
MikamiUitOpen | 0:9470a174c910 | 27 | protected: |
MikamiUitOpen | 0:9470a174c910 | 28 | const int N_DATA_; |
MikamiUitOpen | 0:9470a174c910 | 29 | const int N_FFT_; |
MikamiUitOpen | 0:9470a174c910 | 30 | |
MikamiUitOpen | 0:9470a174c910 | 31 | FftReal fft_; |
MikamiUitOpen | 0:9470a174c910 | 32 | |
MikamiUitOpen | 0:9470a174c910 | 33 | float Norm(Complex x) |
MikamiUitOpen | 0:9470a174c910 | 34 | { return x.real()*x.real() + x.imag()*x.imag(); } |
MikamiUitOpen | 0:9470a174c910 | 35 | |
MikamiUitOpen | 0:9470a174c910 | 36 | private: |
MikamiUitOpen | 0:9470a174c910 | 37 | HammingWindow wHm_; |
MikamiUitOpen | 0:9470a174c910 | 38 | |
MikamiUitOpen | 2:1f092ac020e1 | 39 | Array<float> xData_; // data to be analyzed |
MikamiUitOpen | 2:1f092ac020e1 | 40 | Array<float> wData_; // windowd data |
MikamiUitOpen | 0:9470a174c910 | 41 | |
MikamiUitOpen | 0:9470a174c910 | 42 | virtual void Analyze(const float wData[], float db[]) = 0; |
MikamiUitOpen | 0:9470a174c910 | 43 | |
MikamiUitOpen | 0:9470a174c910 | 44 | // disallow copy constructor and assignment operator |
MikamiUitOpen | 0:9470a174c910 | 45 | AnalyzerBase(const AnalyzerBase& ); |
MikamiUitOpen | 0:9470a174c910 | 46 | AnalyzerBase& operator=(const AnalyzerBase& ); |
MikamiUitOpen | 0:9470a174c910 | 47 | }; |
MikamiUitOpen | 0:9470a174c910 | 48 | } |
MikamiUitOpen | 0:9470a174c910 | 49 | #endif // BASE_ANALYZER_HPP |
MikamiUitOpen | 0:9470a174c910 | 50 |