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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2 /*
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3 Constant-Q library
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4 Copyright (c) 2013-2014 Queen Mary, University of London
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5
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6 Permission is hereby granted, free of charge, to any person
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7 obtaining a copy of this software and associated documentation
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8 files (the "Software"), to deal in the Software without
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9 restriction, including without limitation the rights to use, copy,
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10 modify, merge, publish, distribute, sublicense, and/or sell copies
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11 of the Software, and to permit persons to whom the Software is
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12 furnished to do so, subject to the following conditions:
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13
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14 The above copyright notice and this permission notice shall be
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15 included in all copies or substantial portions of the Software.
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16
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17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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18 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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20 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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21 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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22 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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24
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25 Except as contained in this notice, the names of the Centre for
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26 Digital Music; Queen Mary, University of London; and Chris Cannam
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27 shall not be used in advertising or otherwise to promote the sale,
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28 use or other dealings in this Software without prior written
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29 authorization.
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30 */
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31
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32 #ifndef CQ_PARAMETERS_H
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33 #define CQ_PARAMETERS_H
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34
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35 class CQParameters
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36 {
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37 public:
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38 enum WindowType {
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39 SqrtBlackmanHarris,
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40 SqrtBlackman,
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41 SqrtHann,
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42 BlackmanHarris,
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43 Blackman,
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44 Hann,
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45 };
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46
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47 CQParameters(double _sampleRate,
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48 double _minFrequency,
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49 double _maxFrequency,
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50 int _binsPerOctave) :
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51 sampleRate(_sampleRate),
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52 minFrequency(_minFrequency),
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53 maxFrequency(_maxFrequency),
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54 binsPerOctave(_binsPerOctave),
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55 q(1.0), // Q scaling factor
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56 atomHopFactor(0.25), // hop size of shortest temporal atom
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57 threshold(0.0005), // sparsity threshold for resulting kernel
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58 window(SqrtBlackmanHarris) // window shape
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59 { }
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60
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61 double sampleRate;
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62 double minFrequency;
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63 double maxFrequency;
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64 int binsPerOctave;
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65
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66 double q;
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67 double atomHopFactor;
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68 double threshold;
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69 WindowType window;
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70 };
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71
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72 #endif
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73
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74
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75
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