不韋 呂 / Mbed 2 deprecated F446_Spectrogram

Realtime sound spectrogram using FFT or linear prediction. Spectrogram is displayed on the display of PC. リアルタイム･スペクトログラム．解析の手法：FFT，線形予測法．スペクトログラムは PC のディスプレー装置に表示される．PC 側のプログラム：F446_Spectrogram.

Dependencies:   Array_Matrix mbed SerialTxRxIntr F446_AD_DA UIT_FFT_Real

MySpectrogram/FFT_Analyzer.hpp

Committer:
MikamiUitOpen
Date:
2018-11-04
Revision:
6:c38ec7939609
Parent:
0:a539141b9dec

File content as of revision 6:c38ec7939609:

//-------------------------------------------------------
//  Class for spectrum analysis using FFT (Header)
//
//  2018/11/04, Copyright (c) 2018 MIKAMI, Naoki
//-------------------------------------------------------

#ifndef FFT_ANALYZER_HPP
#define FFT_ANALYZER_HPP

#include "AnalyzerBase.hpp"

namespace Mikami
{
    class FftAnalyzer : public AnalyzerBase
    {
    public:
        FftAnalyzer(int nData, int nFft);
        virtual ~FftAnalyzer() {}

    private:
        Array<Complex> yFft_;   // output of FFT

        virtual void Analyze(const float xn[], float yn[]);

        // disallow copy constructor and assignment operator
        FftAnalyzer(const FftAnalyzer& );
        FftAnalyzer& operator=(const FftAnalyzer& );
    };
}

#endif  // FFT_ANALYZER_HPP