1 files changed, 68 insertions, 0 deletions
diff --git a/sndobj/IFGram.h b/sndobj/IFGram.h
new file mode 100644
index 0000000..aab5c44
--- /dev/null
+++ b/sndobj/IFGram.h
@@ -0,0 +1,68 @@
+ 
+////////////////////////////////////////////////////////////////////////
+// This file is part of the SndObj library
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+//
+// Copyright (c)Victor Lazzarini, 1997-2004
+// See License.txt for a disclaimer of all warranties
+// and licensing information
+
+//////////////////////////////////////////////////////
+//     IFGram.h: Instant Freq Analysis
+//            
+//          Victor Lazzarini, 2003
+//           
+/////////////////////////////////////////////////////////
+
+#ifndef _IFGram_H
+#define _IFGram_H
+#include "PVA.h"
+
+class IFGram : public PVA {
+
+ protected:
+
+
+  float* m_diffwin; // difference window
+  float* m_fftdiff; // holds fft of diff window
+  float* m_diffsig;
+  float* m_pdiff;
+
+ private:
+
+  void inline IFAnalysis(float* signal); 
+
+ public:
+
+  IFGram();
+  IFGram(Table* window, SndObj* input, float scale=1.f,
+	 int fftsize=DEF_FFTSIZE, int hopsize=DEF_VECSIZE, float sr=DEF_SR);
+
+  ~IFGram();
+ 
+  int Set(char* mess, float value);
+  int Connect(char* mess, void* input);
+  void SetFFTSize(int fftsize);
+  short DoProcess();
+  
+};
+
+#endif
+
+
+
+
+