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<a href="AudioDescriptors_8cxx.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * UNIVERSITAT POMPEU FABRA</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <cmath></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="AudioDescriptors_8hxx.html">AudioDescriptors.hxx</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="Audio_8hxx.html">Audio.hxx</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="OSDefines_8hxx.html">OSDefines.hxx</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>CLAM {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> AudioDescriptors::mEpsilon = 1e-5;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="classCLAM_1_1AudioDescriptors.html#ade4262300b61e7e240b2e035a3ed15d6"> 34</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html#ade4262300b61e7e240b2e035a3ed15d6">AudioDescriptors::AudioDescriptors</a>(<a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>* pAudio): <a class="code" href="classCLAM_1_1DescriptorTmpl.html" title="Abstract class for all descriptors.">DescriptorAbs</a>(eNumAttr)</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  MandatoryInit();</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  mpAudio=pAudio;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="classCLAM_1_1AudioDescriptors.html#a14f4966943ff65b426e35b91c39c067e"> 40</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html#ade4262300b61e7e240b2e035a3ed15d6">AudioDescriptors::AudioDescriptors</a>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> initVal):<a class="code" href="classCLAM_1_1DescriptorTmpl.html" title="Abstract class for all descriptors.">DescriptorAbs</a>(eNumAttr)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  MandatoryInit();</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  AddAll();</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  SetMean(initVal);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  SetTemporalCentroid(initVal);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  SetEnergy(initVal);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  SetVariance(initVal);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  SetZeroCrossingRate(initVal);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  SetRiseTime(initVal);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  SetLogAttackTime(initVal);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  SetDecrease(initVal);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> }</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">void</span> AudioDescriptors::DefaultInit() {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  mpAudio=0;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">void</span> AudioDescriptors::CopyInit(<span class="keyword">const</span> AudioDescriptors & copied) {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  mpAudio=copied.mpAudio;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="code" href="classCLAM_1_1AudioDescriptors.html#aaa3e933fa5076900f86fed9486498fd6"> 64</a></span> <span class="keyword">const</span> <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>* <a class="code" href="classCLAM_1_1AudioDescriptors.html#aaa3e933fa5076900f86fed9486498fd6">AudioDescriptors::GetpAudio</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> mpAudio;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="classCLAM_1_1AudioDescriptors.html#a1122dd372a71e76aec4814975ab4b96e"> 70</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html#a1122dd372a71e76aec4814975ab4b96e">AudioDescriptors::SetpAudio</a>(<a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>* pAudio) {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  mpAudio=pAudio;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">//TODO: it may give problems because pointer passed</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="classCLAM_1_1DescriptorTmpl.html#ab8c9be135d92dc84f90778c6bf5f857d">InitStats</a>(&mpAudio->GetBuffer());</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  mIsAttackTimeComputed=<span class="keyword">false</span>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="code" href="classCLAM_1_1AudioDescriptors.html#a45ddc4008f7786d6d794c2744d5d2dd0"> 77</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html#a45ddc4008f7786d6d794c2744d5d2dd0">AudioDescriptors::ConcreteCompute</a>()</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">if</span> (HasMean())</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  SetMean(<a class="code" href="classCLAM_1_1DescriptorTmpl.html#ad1699962f410bd060677e7baacf7efbf">mpStats</a>-><a class="code" href="classCLAM_1_1StatsTmpl.html#ad6fbea336d2c307720e32f8fe034b436" title="Get mean, compute it if necessary.">GetMean</a>());</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">if</span> (HasTemporalCentroid())</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  SetTemporalCentroid(<a class="code" href="classCLAM_1_1DescriptorTmpl.html#ad1699962f410bd060677e7baacf7efbf">mpStats</a>-><a class="code" href="classCLAM_1_1StatsTmpl.html#a8b64a45d05bb6c96f17ccc896a391a33" title="Get centroid, compute it if necessary.">GetCentroid</a>()/mpAudio->GetSampleRate());</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (HasEnergy())</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  SetEnergy(<a class="code" href="classCLAM_1_1DescriptorTmpl.html#ad1699962f410bd060677e7baacf7efbf">mpStats</a>-><a class="code" href="classCLAM_1_1StatsTmpl.html#a7ca338ec3c9119c3e2a3766bd656f4fe" title="Get energy, compute it if necessary.">GetEnergy</a>());</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span>(HasVariance())</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  SetVariance(<a class="code" href="classCLAM_1_1DescriptorTmpl.html#ad1699962f410bd060677e7baacf7efbf">mpStats</a>-><a class="code" href="classCLAM_1_1StatsTmpl.html#a370240f54b4cf4346338b50604df05b9" title="Get variance, compute it if necessary.">GetVariance</a>());</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span>(HasZeroCrossingRate())</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  SetZeroCrossingRate(ComputeZeroCrossingRate());</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span>(HasRiseTime())</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  SetRiseTime(ComputeAttackTime());</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span>(HasLogAttackTime())</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  SetLogAttackTime(ComputeLogAttackTime());</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span>(HasDecrease())</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  SetDecrease(ComputeDecrease());</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> AudioDescriptors::ComputeZeroCrossingRate()</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classCLAM_1_1Array.html">DataArray</a>& <a class="code" href="classCLAM_1_1DynamicType.html#a8f3651d022fbe0b18c9d0ad0d67f1950">data</a> = mpAudio->GetBuffer();</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordtype">int</span> signChangeCount = 0;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <a class="code" href="classint.html">TSize</a> size = data.<a class="code" href="classCLAM_1_1Array.html#a4679b3a2a2921d6bf15d63c8312fdfc3">Size</a>();</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">bool</span> wasPositive = data[0] > 0.0;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=1; i<size; i++)</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> isPositive = (data[i] > 0.0);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (wasPositive == isPositive) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  signChangeCount++;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  wasPositive = isPositive;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// Average</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> ((<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>)signChangeCount)/size;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> AudioDescriptors::ComputeAttackTime()</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span>(mIsAttackTimeComputed) <span class="keywordflow">return</span> mComputedAttackTime;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#a17d8ae0314065546f8cd8d2ce7764a56">DataArray</a>& data = mpAudio->GetBuffer();</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#a33598bc354b7042bc0d6529a155937a7">TSize</a> <a class="code" href="classCLAM_1_1DynamicType.html#a5960aaa0611812194003244bd6f3dc6e">dataSize</a> = mpAudio-><a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="namespaceCLAM.html#a17d8ae0314065546f8cd8d2ce7764a56">DataArray</a> energyEnv;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  energyEnv.<a class="code" href="classCLAM_1_1Array.html#a811565ea3bbfe0bc9fa7c4e48b3210e4">Resize</a>(dataSize);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  energyEnv.SetSize(dataSize);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Compute 20Hz lowpass filter coefficients</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> omega_c = 2*<a class="code" href="OSDefines_8hxx.html#a598a3330b3c21701223ee0ca14316eca">PI</a>*20/mpAudio->GetSampleRate();</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> alpha = (1-sin(omega_c)) / cos(omega_c);</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> b0 = (1-alpha)/2;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> a1 = -alpha;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// Find maximum value</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  energyEnv[0] = b0*<a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[0]);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> maxVal = energyEnv[0];</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">for</span> (<a class="code" href="namespaceCLAM.html#af934e7dd545c1aed1cd0fd551c135122">TIndex</a> i=1; i<<a class="code" href="classCLAM_1_1DynamicType.html#a5960aaa0611812194003244bd6f3dc6e">dataSize</a>; i++) {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  energyEnv[i] = b0*(<a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[i]) + <a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[i-1])) - a1*energyEnv[i-1];</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (energyEnv[i] > maxVal) maxVal = energyEnv[i];</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// Locate start and stop of attack</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> startThreshold = 0.02*maxVal;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> stopThreshold = 0.80*maxVal;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="namespaceCLAM.html#af934e7dd545c1aed1cd0fd551c135122">TIndex</a> startIdx;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">for</span> (startIdx=0; startIdx<<a class="code" href="classCLAM_1_1DynamicType.html#a5960aaa0611812194003244bd6f3dc6e">dataSize</a>; startIdx++) {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (energyEnv[startIdx] > startThreshold) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="namespaceCLAM.html#af934e7dd545c1aed1cd0fd551c135122">TIndex</a> stopIdx;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">for</span> (stopIdx=startIdx; stopIdx<<a class="code" href="classCLAM_1_1DynamicType.html#a5960aaa0611812194003244bd6f3dc6e">dataSize</a>; stopIdx++) {</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (energyEnv[stopIdx] > stopThreshold) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  mComputedAttackTime=(stopIdx - startIdx) / mpAudio->GetSampleRate();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  mIsAttackTimeComputed=<span class="keyword">true</span>;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> mComputedAttackTime;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> AudioDescriptors::ComputeLogAttackTime()</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  ComputeAttackTime();</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (mComputedAttackTime==0)</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> log10(mEpsilon);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> log10(mComputedAttackTime);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> }</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> AudioDescriptors::ComputeDecrease()</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> {</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#a17d8ae0314065546f8cd8d2ce7764a56">DataArray</a>& data = mpAudio->GetBuffer();</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">const</span> <a class="code" href="namespaceCLAM.html#a33598bc354b7042bc0d6529a155937a7">TSize</a> dataSize = mpAudio-><a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// Compute 20Hz lowpass filter coefficients</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> omega_c = 2*<a class="code" href="OSDefines_8hxx.html#a598a3330b3c21701223ee0ca14316eca">PI</a>*20/mpAudio->GetSampleRate();</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> alpha = (1-sin(omega_c)) / cos(omega_c);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> b0 = (1-alpha)/2;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> a1 = -alpha;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// Find maximum value</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">double</span> y = b0*<a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[0]);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> correctedY = y<mEpsilon ? mEpsilon : y;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">double</span> logEnv = log10(correctedY);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> maxVal = logEnv;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="namespaceCLAM.html#a33598bc354b7042bc0d6529a155937a7">TSize</a> maxIdx = 0;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">double</span> sumXX = 0;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordtype">double</span> sumY = 0;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordtype">double</span> sumXY = 0;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">for</span> (<a class="code" href="namespaceCLAM.html#af934e7dd545c1aed1cd0fd551c135122">TIndex</a> i=1; i<<a class="code" href="classCLAM_1_1DynamicType.html#a5960aaa0611812194003244bd6f3dc6e">dataSize</a>; i++)</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  y = b0*(<a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[i-1]) + <a class="code" href="namespaceCLAM.html#a1a66f31c63ad9961ad40c4291dc7f648">CLAM::Abs</a>(data[i])) - a1*y;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  correctedY = y<mEpsilon ? mEpsilon : y;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> logEnv = log10(correctedY);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (logEnv > maxVal)</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  {</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  maxVal = logEnv;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  maxIdx = i;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  sumXX = 0;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  sumY = 0;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  sumXY = 0;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  sumY += logEnv;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  sumXY += i*logEnv;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  sumXX += i*i;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">// Compute means and gradient of decay part</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> N = dataSize - maxIdx;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> sumX = N*(N + 2*maxIdx - 1)/2;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> num = N * sumXY - sumX * sumY;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> den = N * sumXX - sumX * sumX;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> (num / den) * mpAudio->GetSampleRate();</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
<div class="line"><a name="l00226"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#ab5c7bc0cc214985b3b979666202e12d7"> 226</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#ab5c7bc0cc214985b3b979666202e12d7">operator * </a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a,<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> mult)</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> {</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> tmpD(a);</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> (a.HasMean())</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  tmpD.SetMean(a.GetMean()*mult);</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (a.HasTemporalCentroid())</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  tmpD.SetTemporalCentroid(a.GetTemporalCentroid()*mult);</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (a.HasEnergy())</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  tmpD.SetEnergy(a.GetEnergy()*mult);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">if</span>(a.HasVariance())</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  tmpD.SetVariance(a.GetVariance()*mult);</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span>(a.HasZeroCrossingRate())</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  {</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  tmpD.SetZeroCrossingRate(a.GetZeroCrossingRate()*mult);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">if</span>(a.HasRiseTime())</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  tmpD.SetRiseTime(a.GetRiseTime()*mult);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">if</span>(a.HasLogAttackTime())</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  {</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  tmpD.SetLogAttackTime(a.GetLogAttackTime()*mult);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span>(a.HasDecrease())</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  {</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  tmpD.SetDecrease(a.GetDecrease()*mult);</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">return</span> tmpD;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> }</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a name="l00266"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#a4d17b7d9850d4f3c4b675fba7e2aa63f"> 266</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#ab5c7bc0cc214985b3b979666202e12d7">operator * </a>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> mult, <span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a)</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> {</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">return</span> a*mult;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> }</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div>
<div class="line"><a name="l00271"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#a9026398528d1ca3d4f34f9f5eded499d"> 271</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#ab5c7bc0cc214985b3b979666202e12d7">operator * </a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a,<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& b)</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> tmpD;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">if</span> (a.HasMean() && b.HasMean() )</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  tmpD.AddMean();</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  tmpD.SetMean(a.GetMean()*b.GetMean() );</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (a.HasTemporalCentroid() && b.HasTemporalCentroid() )</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  {</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  tmpD.AddTemporalCentroid();</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  tmpD.SetTemporalCentroid(a.GetTemporalCentroid()*b.GetTemporalCentroid() );</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (a.HasEnergy() && b.HasEnergy() )</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  tmpD.AddEnergy();</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  tmpD.SetEnergy(a.GetEnergy()*b.GetEnergy() );</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">if</span>(a.HasVariance() && b.HasVariance() )</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  tmpD.AddVariance();</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  tmpD.SetVariance(a.GetVariance()*b.GetVariance() );</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  }</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">if</span>(a.HasZeroCrossingRate() && b.HasZeroCrossingRate() )</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  {</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  tmpD.AddZeroCrossingRate();</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  tmpD.SetZeroCrossingRate(a.GetZeroCrossingRate()*b.GetZeroCrossingRate() );</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">if</span>(a.HasRiseTime() && b.HasRiseTime() )</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  {</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  tmpD.AddRiseTime();</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  tmpD.SetRiseTime(a.GetRiseTime()*b.GetRiseTime() );</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span>(a.HasLogAttackTime() && b.HasLogAttackTime() )</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  {</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  tmpD.AddLogAttackTime();</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  tmpD.SetLogAttackTime(a.GetLogAttackTime()*b.GetLogAttackTime() );</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  }</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">if</span>(a.HasDecrease() && b.HasDecrease() )</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  {</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  tmpD.AddDecrease();</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  tmpD.SetDecrease(a.GetDecrease()*b.GetDecrease() );</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">return</span> tmpD;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> }</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
<div class="line"><a name="l00326"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#aba59bb19e7905361314f2afa4325de06"> 326</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#aba59bb19e7905361314f2afa4325de06">operator + </a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a,<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& b)</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> {</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> tmpD;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">if</span> (a.HasMean() && b.HasMean() )</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  {</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  tmpD.AddMean();</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  tmpD.SetMean(a.GetMean()+b.GetMean() );</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (a.HasTemporalCentroid() && b.HasTemporalCentroid() )</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  {</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  tmpD.AddTemporalCentroid();</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  tmpD.SetTemporalCentroid(a.GetTemporalCentroid()+b.GetTemporalCentroid() );</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (a.HasEnergy() && b.HasEnergy() )</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  {</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  tmpD.AddEnergy();</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  tmpD.SetEnergy(a.GetEnergy()+b.GetEnergy() );</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  }</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">if</span>(a.HasVariance() && b.HasVariance() )</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  {</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  tmpD.AddVariance();</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  tmpD.SetVariance(a.GetVariance()+b.GetVariance() );</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span>(a.HasZeroCrossingRate() && b.HasZeroCrossingRate() )</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  tmpD.AddZeroCrossingRate();</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  tmpD.SetZeroCrossingRate(a.GetZeroCrossingRate()+b.GetZeroCrossingRate() );</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">if</span>(a.HasRiseTime() && b.HasRiseTime() )</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  {</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  tmpD.AddRiseTime();</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  tmpD.SetRiseTime(a.GetRiseTime()+b.GetRiseTime() );</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  }</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">if</span>(a.HasLogAttackTime() && b.HasLogAttackTime() )</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  {</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  tmpD.AddLogAttackTime();</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  tmpD.SetLogAttackTime(a.GetLogAttackTime()+b.GetLogAttackTime() );</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span>(a.HasDecrease() && b.HasDecrease() )</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  {</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  tmpD.AddDecrease();</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  tmpD.<a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  tmpD.SetDecrease(a.GetDecrease()+b.GetDecrease() );</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  }</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">return</span> tmpD;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> }</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
<div class="line"><a name="l00382"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#ac06ed1c868135bffdce9831c4f759f0f"> 382</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#ac06ed1c868135bffdce9831c4f759f0f">operator - </a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a,<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& b)</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> {</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">return</span> a+((-1)*b);</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> }</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div>
<div class="line"><a name="l00387"></a><span class="lineno"><a class="code" href="namespaceCLAM.html#a87414836374956d8a5d5c2aee35d5a4d"> 387</a></span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a> <a class="code" href="namespaceCLAM.html#a87414836374956d8a5d5c2aee35d5a4d">operator / </a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1AudioDescriptors.html">AudioDescriptors</a>& a,<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> div) </div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> {</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">return</span> a*(1/div);</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> }</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> }</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div>
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