CLAM-Development  1.4.0
Vocoder.hxx
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1 
2 /*
3  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
4  * UNIVERSITAT POMPEU FABRA
5  *
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  *
21  */
22 
23 
24 #ifndef _Vocoder_
25 #define _Vocoder_
26 
27 #include "InPort.hxx"
28 #include "OutPort.hxx"
29 #include "InControl.hxx"
30 #include "Frame.hxx"
31 #include "FrameTransformation.hxx"
33 #include "SimpleOscillator.hxx"
34 
35 namespace CLAM{
36 
37  class Vocoder: public FrameTransformationTmpl<Spectrum>
38  {
39  InPort<Spectrum> mIn;
40  OutPort<Spectrum> mOut;
41 
42  FloatInControl mBand0GainCtl;
43  FloatInControl mBand1GainCtl;
44  FloatInControl mBand2GainCtl;
45  FloatInControl mBand3GainCtl;
46  FloatInControl mNumBandsCtl;
47  FloatInControl mFreqShiftCtl;
48 
49  public:
50  const char* GetClassName() const
51  {
52  return "Vocoder";
53  }
54 
56  : mIn("In Spectrum", this)
57  , mOut("Out Spectrum", this)
58  , mBand0GainCtl("Band0Gain", this)
59  , mBand1GainCtl("Band1Gain", this)
60  , mBand2GainCtl("Band2Gain", this)
61  , mBand3GainCtl("Band3Gain", this)
62  , mNumBandsCtl("NumBands", this)
63  , mFreqShiftCtl("FreqShift", this)
64  {
66  }
67 
68  ~Vocoder() {}
69 
70  bool InitControls()
71  {
72  mNumBandsCtl.DoControl(50);
73  return true;
74  }
75 
76  bool Do(const Frame& in, Frame& out)
77  {
78  return Do(in.GetSpectrum(),
79  out.GetSpectrum());
80  }
81 
82  bool Do(const Spectrum& in, Spectrum& out);
83 
84  bool Do()
85  {
86  bool result = Do(mIn.GetData(), mOut.GetData());
87  mIn.Consume();
88  mOut.Produce();
89  return result;
90  }
91  private:
92  DataArray mMagBuffer;
93  };
94 };//namespace CLAM
95 
96 #endif // _Vocoder_
97