xue@11: /*
xue@11:     Harmonic sinusoidal modelling and tools
xue@11: 
xue@11:     C++ code package for harmonic sinusoidal modelling and relevant signal processing.
xue@11:     Centre for Digital Music, Queen Mary, University of London.
xue@11:     This file copyright 2011 Wen Xue.
xue@11: 
xue@11:     This program is free software; you can redistribute it and/or
xue@11:     modify it under the terms of the GNU General Public License as
xue@11:     published by the Free Software Foundation; either version 2 of the
xue@11:     License, or (at your option) any later version.
xue@11: */
xue@1: #ifndef WindowFunctionsH
xue@1: #define WindowFunctionsH
xue@1: 
Chris@5: /**
Chris@5:   \file windowfunctions.h - implements a few common window functions.
xue@1: */
xue@1: 
xue@1: enum WindowType
xue@1: {
xue@1:   wtRectangle,
xue@1:   wtTriangular,
xue@1:   wtHamming,
xue@1:   wtBlackman,
xue@1:   wtGaussian,
xue@1:   wtKaiser,
xue@1:   wtHalfCosine,
xue@1:   wtHann,
xue@1:   wtHannSqr,
xue@1:   wtHann3sqrt
xue@1: };
xue@1: 
xue@1: //--window function computation routines-------------------------------------
xue@1: void FillWindow(double* newwindow, WindowType wt, int Count, int* ips=0, double* dps=0);
xue@1: double* NewWindow(WindowType wt, int Count, int* ips=0, double* dps=0, double* newwindow=0);
xue@1: double* NewWindow8(WindowType wt, int Count, int* ips=0, double* dps=0, double* newwindow=0);
xue@1: double* NewdWindow(WindowType wt, int Count, int* ips=0, double* dps=0, double* newdwindow=0);
xue@1: double* NewddWindow(WindowType wt, int Count, int* ips=0, double* dps=0, double* newddwindow=0);
xue@1: double* NewdddWindow(WindowType wt, int Count, int* ips=0, double* dps=0, double* newdddwindow=0);
xue@1: 
xue@1: //--other functions----------------------------------------------------------
xue@1: void windowspec(WindowType wt, int N, int* M, double* c, double* iH2, double* d=0);
xue@1: 
xue@1: #endif