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@6:c38ec7939609, 2018-11-04 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Nov 04 10:41:02 2018 +0000
Revision:
6:c38ec7939609
Parent:
0:a539141b9dec 
7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:a539141b9dec 1 //-------------------------------------------------------
MikamiUitOpen 0:a539141b9dec 2 // Class for spectrum analysis using FFT (Header)
MikamiUitOpen 0:a539141b9dec 3 //
MikamiUitOpen 6:c38ec7939609 4 // 2018/11/04, Copyright (c) 2018 MIKAMI, Naoki
MikamiUitOpen 0:a539141b9dec 5 //-------------------------------------------------------
MikamiUitOpen 0:a539141b9dec 6
MikamiUitOpen 0:a539141b9dec 7 #ifndef FFT_ANALYZER_HPP
MikamiUitOpen 0:a539141b9dec 8 #define FFT_ANALYZER_HPP
MikamiUitOpen 0:a539141b9dec 9
MikamiUitOpen 0:a539141b9dec 10 #include "AnalyzerBase.hpp"
MikamiUitOpen 0:a539141b9dec 11
MikamiUitOpen 0:a539141b9dec 12 namespace Mikami
MikamiUitOpen 0:a539141b9dec 13 {
MikamiUitOpen 0:a539141b9dec 14 class FftAnalyzer : public AnalyzerBase
MikamiUitOpen 0:a539141b9dec 15 {
MikamiUitOpen 0:a539141b9dec 16 public:
MikamiUitOpen 0:a539141b9dec 17 FftAnalyzer(int nData, int nFft);
MikamiUitOpen 0:a539141b9dec 18 virtual ~FftAnalyzer() {}
MikamiUitOpen 0:a539141b9dec 19
MikamiUitOpen 0:a539141b9dec 20 private:
MikamiUitOpen 0:a539141b9dec 21 Array<Complex> yFft_; // output of FFT
MikamiUitOpen 0:a539141b9dec 22
MikamiUitOpen 0:a539141b9dec 23 virtual void Analyze(const float xn[], float yn[]);
MikamiUitOpen 0:a539141b9dec 24
MikamiUitOpen 0:a539141b9dec 25 // disallow copy constructor and assignment operator
MikamiUitOpen 0:a539141b9dec 26 FftAnalyzer(const FftAnalyzer& );
MikamiUitOpen 0:a539141b9dec 27 FftAnalyzer& operator=(const FftAnalyzer& );
MikamiUitOpen 0:a539141b9dec 28 };
MikamiUitOpen 0:a539141b9dec 29 }
MikamiUitOpen 0:a539141b9dec 30
MikamiUitOpen 0:a539141b9dec 31 #endif // FFT_ANALYZER_HPP