www.pudn.com > AudioTest.rar > WaveAnalysis.h

// WaveAnalysis.h: interface for the CWaveAnalysis class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_WAVEANALYSIS_H__84B0C621_E125_44ED_B064_CEDDC610A62A__INCLUDED_) 
#define AFX_WAVEANALYSIS_H__84B0C621_E125_44ED_B064_CEDDC610A62A__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#define HANNING_WIDOW			1 
#define HAMMING_WINDOW			2 
#define BLACKMAN_WINDOW			3 
#define BLACKMAN_HARRIS_WINDOW	4 
#define BARTLETT_WINDOW			5 
 
class CWaveAnalysis   
{ 
public: 
	int which_window; 
	int is_db; 
	long samplingfreq;// = 11025; 
	double *power; 
	void FftCal(double* InW, int N, double *p_power); 
	void FftCal(BYTE* InW, int N, double *p_power); 
	void FftDraw(CPaintDC &dc, int x0, int y0,int yzoom,double* Xfr, int N); 
	 
public: 
	CWaveAnalysis(); 
	virtual ~CWaveAnalysis(); 
 
}; 
 
#endif // !defined(AFX_WAVEANALYSIS_H__84B0C621_E125_44ED_B064_CEDDC610A62A__INCLUDED_)