Deesser.hxx

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00001 
00002 /*
00003  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
00004  *                         UNIVERSITAT POMPEU FABRA
00005  *
00006  *
00007  * This program is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020  *
00021  */
00022 
00023 
00024 #ifndef _Deesser_
00025 #define _Deesser_
00026 
00027 #include "InPort.hxx"
00028 #include "OutPort.hxx"
00029 #include "InControl.hxx"
00030 #include "Frame.hxx"
00031 #include "FrameTransformation.hxx"
00032 #include "FrameTransformationConfig.hxx"
00033 #include "SpectralNotch.hxx"
00034 
00035 namespace CLAM{
00036 
00037         class Deesser: public FrameTransformationTmpl<Spectrum>
00038         {
00039                 InPort<Spectrum> mIn;
00040                 OutPort<Spectrum> mOut;
00041 
00042                 FloatInControl mLowCutoffFreqCtl;
00043                 FloatInControl mHighCutoffFreqCtl;
00044                 FloatInControl mThresholdCtl;
00045         public:
00046                 const char* GetClassName() const
00047                 {
00048                         return "Deesser";
00049                 }
00050 
00051                 Deesser() 
00052                         : 
00053                         mIn("In Spectrum", this), 
00054                         mOut("Out Spectrum", this) ,
00055                         mLowCutoffFreqCtl("LowCutoff", this),
00056                         mHighCutoffFreqCtl("HighCutoff", this),
00057                         mThresholdCtl("Threshold", this)
00058                 {
00059                         Configure( FrameTransformationConfig() );
00060                         mNotch.Configure( FrameTransformationConfig() );
00061                 }
00062 
00063                 ~Deesser() {}   
00064                 
00065                 virtual bool InitControls()
00066                 { 
00067                         mLowCutoffFreqCtl.DoControl(3000);
00068                         mHighCutoffFreqCtl.DoControl(6000);
00069                         mThresholdCtl.DoControl(-30);
00070                         
00071                         return true;
00072                 }
00073                 
00074                 bool Do(const Frame& in, Frame& out)
00075                 {
00076                         return Do(in.GetSpectrum(), 
00077                                   out.GetSpectrum());
00078                 }
00079 
00080                 bool Do(const Spectrum& in, Spectrum& out);
00081 
00082                 bool Do()
00083                 {
00084                         bool result = Do(mIn.GetData(), mOut.GetData()); 
00085                         mIn.Consume();
00086                         mOut.Produce();
00087                         return result;
00088                 }
00089         private:
00090                 SpectralNotch mNotch;
00091         };              
00092 };//namespace CLAM
00093 
00094 #endif // _Deesser_
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