CLAM-Development  1.4.0
ERB_Space_Gen.hxx
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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 
22 #ifndef _ERBSpaceGen_
23 #define _ERBSpaceGen_
24 
25 #include "DataTypes.hxx"
26 #include "Processing.hxx"
27 #include "Array.hxx"
28 #include "ERB_Space_GenConfig.hxx"
29 
30 namespace CLAM
31 {
32 
33 //CLASS ERB_SpaceGen
34 //This function computes an array of NumFilter frequencies uniformly spaced between
35 //highFreq and lowFreq on an ERB scale. N is set to 100 if not specified.
36 //
37 //For a definition of ERB, see Moore, B. C. J., and Glasberg, B. R. (1983).
38 //"Suggested formulae for calculating auditory-filter bandwidths and
39 // excitation patterns," J. Acoust. Soc. Am. 74, 750-753.
40 
41 
42 class ERB_SpaceGen : public Processing
43 {
44 public:
45  ERB_SpaceGen();
47  ~ERB_SpaceGen();
48 
49  const ProcessingConfig &GetConfig() const { return mConfig;}
50 
52  bool Do(void){return false;}
53 
55  bool Do(Array<double>& mERBFreqs);
56 
57  const char * GetClassName() const {return "ERB_SpaceGen";}
58 
59 private:
60  bool ConcreteConfigure(const ProcessingConfig& c);
61 
62  ERB_SpaceGenConfig mConfig;
63 
64  TSize mNumFilter;
65  TSize mLowFreq;
66  TSize mHighFreq;
67 
68 };
69 
70 } // namespace CLAM
71 
72 #endif // _ERBSpaceGen_
73