CLAM-Development  1.4.0
SpectralRingModulation.cxx
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1 /*
2  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
3  * UNIVERSITAT POMPEU FABRA
4  *
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */
21 
23 #include "ProcessingFactory.hxx"
24 
25 namespace CLAM
26 {
27 
28 namespace Hidden
29 {
30  static const char * metadata[] = {
31  "key", "SpectralRingModulation",
32  // "category", "Spectral Transformations",
33  // "description", "SpectralRingModulation",
34  0
35  };
36  static FactoryRegistrator<ProcessingFactory, SpectralRingModulation> reg = metadata;
37 }
38 
40 {
41  if ( !mConfig.GetPreserveOuts() )
42  {
43  out = in; //TODO big cludge for streaming
44  }
45 
46  int spectrumSize = in.GetSize();
47 
48  SendFloatToInControl(mOscillator,"Pitch",mFreqCtl.GetLastValue());
49  SendFloatToInControl(mOscillator,"Amplitude",mWidthCtl.GetLastValue());
50  //kludge: this is not taking into account the possible overlap between windows!!
51  SendFloatToInControl(mOscillator,"SamplesBetweenCalls",(spectrumSize-1)/2);
52 
53  DataArray& oMag = out.GetMagBuffer();
54 
55  TData modFactor;
56  mOscillator.Do(modFactor);
57 
58  for(int i = 0; i<spectrumSize; i++)
59  {
60  oMag[i] = oMag[i] * modFactor;
61  }
62  return true;
63 }
64 
65 
66 
67 }
68