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FFTMultiRate.hh

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00001 /*
00002 
00003     Base class for FFT based multirate filters, header
00004     Copyright (C) 2000-2002 Jussi Laako
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019 
00020 */
00021 
00022 
00023 #include "dsp/Filter.hh"
00024 
00025 
00026 #ifndef FFTMULTIRATE_HH
00027     #define FFTMULTIRATE_HH
00028 
00029     #define FFTMULTIRATE_RIPPLERATIO        144.49f
00030     #define FFTMULTIRATE_OVERLAP            0.75f
00031     #define FFTMULTIRATE_DELTAOMEGA         0.1f
00032 
00033 
00040     class clFFTMultiRate
00041     {
00042         protected:
00043             bool bInitialized;
00044             long lFactor;  
00045             long lFilterSize;  
00046             clFilter Filter;
00047         public:
00048             clFFTMultiRate ();
00049             ~clFFTMultiRate ();
00062             bool Initialize (long, long, const float *, bool = false);
00064             bool Initialize (long, long, const double *, bool = false);
00068             void Uninitialize ();
00069     };
00070 
00071 #endif
00072 

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