不韋 呂
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
Diff: MySpectrogram/FFT_Analyzer.hpp
- Revision:
- 0:a539141b9dec
- Child:
- 6:c38ec7939609
diff -r 000000000000 -r a539141b9dec MySpectrogram/FFT_Analyzer.hpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MySpectrogram/FFT_Analyzer.hpp Fri Feb 17 04:55:10 2017 +0000
@@ -0,0 +1,31 @@
+//-------------------------------------------------------
+// Class for spectrum analysis using FFT (Header)
+//
+// 2017/02/04, Copyright (c) 2017 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