Integrated program of 4 different kinds of application programs for processing sound signal. 4種類のサウンド信号処理を統合したプログラム.
Dependencies: F746_GUI F746_SAI_IO FrequencyResponseDrawer SD_PlayerSkeleton UIT_FFT_Real
Diff: MySpectrogram/AnalysisBase.cpp
- Revision:
- 0:224dccbc4edd
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MySpectrogram/AnalysisBase.cpp Mon Aug 15 07:18:07 2016 +0000 @@ -0,0 +1,27 @@ +//------------------------------------------------------- +// Base abstract class for spectrum analysis +// +// 2016/07/23, Copyright (c) 2016 MIKAMI, Naoki +//------------------------------------------------------- + +#include "AnalysisBase.hpp" + +namespace Mikami +{ + AnalyzerBase::AnalyzerBase(int nData, int nFft, int nUse) + : N_DATA_(nData), N_FFT_(nFft), + fft_(nFft), wHm_(nData-1, nUse), + xData_(nUse), wData_(nUse) {} + + void AnalyzerBase::Execute(const float xn[], float db[]) + { + // Differencing + for (int n=0; n<N_DATA_-1; n++) + xData_[n] = xn[n+1] - 0.8f*xn[n]; + + // Windowing + wHm_.Execute(xData_, wData_); + + Analyze(wData_, db); + } +}