Sophie

Sophie

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lib64broadvoice-devel-0.1.0-2.mga6.x86_64.rpm

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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/* BroadVoice(R)16 (BV16) Floating-Point ANSI-C Source Code                  */</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">/* Revision Date: August 19, 2009                                            */</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">/* Version 1.0                                                               */</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">/* Copyright 2000-2009 Broadcom Corporation                                  */</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">/*                                                                           */</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">/* This software is provided under the GNU Lesser General Public License,    */</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">/* version 2.1, as published by the Free Software Foundation (&quot;LGPL&quot;).       */</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">/* This program is distributed in the hope that it will be useful, but       */</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">/* WITHOUT ANY SUPPORT OR WARRANTY; without even the implied warranty of     */</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the LGPL for     */</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">/* more details.  A copy of the LGPL is available at                         */</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">/* http://www.broadcom.com/licenses/LGPLv2.1.php,                            */</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">/* or by writing to the Free Software Foundation, Inc.,                      */</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">/* 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 */</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">/*****************************************************************************</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">  bv16cnst.h : BV16 constants</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">  $Log: bv16cnst.h,v $</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">  Revision 1.1.1.1  2009/11/19 12:10:48  steveu</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">  Start from Broadcom&#39;s code</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">  Revision 1.1.1.1  2009/11/17 14:06:02  steveu</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">  start</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">******************************************************************************/</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &quot;typedef.h&quot;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#ifndef  BV16CNST_H</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#define  BV16CNST_H</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">/* ----- Basic Codec Parameters ----- */</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#define FRSZ    40              </span><span class="comment">/* frame size */</span><span class="preprocessor"></span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#define WINSZ   160             </span><span class="comment">/* lpc analysis WINdow SiZe  */</span><span class="preprocessor"></span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#define MAXPP   137     </span><span class="comment">/* MAXimum Pitch Period                           */</span><span class="preprocessor"></span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#define MINPP   10      </span><span class="comment">/* MINimum Pitch Period                           */</span><span class="preprocessor"></span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#define PWSZ    120         </span><span class="comment">/* Pitch analysis Window SiZe   */</span><span class="preprocessor"></span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#define MAXPP1 (MAXPP+1)</span><span class="comment">/* MAXimum Pitch Period + 1       */</span><span class="preprocessor"></span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">/* Quantization parameters */</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="preprocessor">#define VDIM              4     </span><span class="comment">/* excitation vector dimension */</span><span class="preprocessor"></span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="preprocessor">#define CBSZ             16     </span><span class="comment">/* excitation codebook size */</span><span class="preprocessor"></span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="preprocessor">#define PPCBSZ     32   </span><span class="comment">/* pitch predictor codebook size */</span><span class="preprocessor"></span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="preprocessor">#define LGPORDER          8     </span><span class="comment">/* Log-Gain Predictor OODER */</span><span class="preprocessor"></span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#define LGPECBSZ         16     </span><span class="comment">/* Log-Gain Prediction Error CodeBook SiZe */</span><span class="preprocessor"></span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor">#define LSPPORDER   8   </span><span class="comment">/* LSP MA Predictor ORDER */</span><span class="preprocessor"></span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="preprocessor">#define LSPECBSZ1 128   </span><span class="comment">/* codebook size of 1st-stage LSP VQ */</span><span class="preprocessor"></span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="preprocessor">#define LSPECBSZ2  64   </span><span class="comment">/* codebook size of 2nd-stage LSP VQ; 1-bit for sign */</span><span class="preprocessor"></span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="preprocessor">#define INVFRSZ (1./(Float)FRSZ)</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment">/* Excitation gain quantization */</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="preprocessor">#define LGMEAN   11.45752 </span><span class="comment">/* log2-gain mean               */</span><span class="preprocessor"></span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="preprocessor">#define GPO       8       </span><span class="comment">/* order of MA prediction       */</span><span class="preprocessor"></span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="preprocessor">#define NG       18       </span><span class="comment">/* number of relative gain bins */</span><span class="preprocessor"></span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="preprocessor">#define GLB     -24.      </span><span class="comment">/* lower relative gain bound    */</span><span class="preprocessor"></span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="preprocessor">#define NGC      12       </span><span class="comment">/* number of gain change bins   */</span><span class="preprocessor"></span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor">#define GCLB     -8.      </span><span class="comment">/* lower gain change bound      */</span><span class="preprocessor"></span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="preprocessor">#define Minlg     0.      </span><span class="comment">/* minimum log-gain             */</span><span class="preprocessor"></span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">#define TMinlg    1.      </span><span class="comment">/* minimum linear gain          */</span><span class="preprocessor"></span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="preprocessor">#define LGCBSZ   16       </span><span class="comment">/* size of codebook             */</span><span class="preprocessor"></span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">/* Definitions for periodicity to gain scaling mapping */</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor">#define ScPLCGmin 0.1</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="preprocessor">#define ScPLCGmax 0.9</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="preprocessor">#define PePLCGmin 0.5</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="preprocessor">#define PePLCGmax 0.9</span></div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="preprocessor">#define ScPLCG_b ((ScPLCGmin-ScPLCGmax)/(PePLCGmax-PePLCGmin))</span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="preprocessor">#define ScPLCG_a (ScPLCGmin-ScPLCG_b*PePLCGmax)</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="preprocessor">#define HoldPLCG  8</span></div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="preprocessor">#define AttnPLCG 50</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="preprocessor">#define AttnFacPLCG (1.0/(Float)AttnPLCG)</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">/* Level Estimation */</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="preprocessor">#define estl_alpha  (4095./4096.)</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="preprocessor">#define estl_alpha1 (255./256.)</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="preprocessor">#define estl_beta   (511./512.)</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="preprocessor">#define estl_beta1  (1.-estl_beta)</span></div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="preprocessor">#define estl_a      (255./256)</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="preprocessor">#define estl_a1     (1-estl_a)</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="preprocessor">#define estl_TH     0.2</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="preprocessor">#define Nfdm        100 </span><span class="comment">/* Max number of frames with fast decay of Lmin */</span><span class="preprocessor"></span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="comment">/* Log-Gain Limitation */</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="preprocessor">#define  LGLB   -24         </span><span class="comment">/* Relative (to input level) Log-Gain Lower Bound */</span><span class="preprocessor"></span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="preprocessor">#define  LGCLB  -8          </span><span class="comment">/* Log-Gain Change Lower Bound */</span><span class="preprocessor"></span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="preprocessor">#define  NGB    18          </span><span class="comment">/* Number of Gain Bins */</span><span class="preprocessor"></span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="preprocessor">#define  NGCB   12          </span><span class="comment">/* Number of Gain Change Bins */</span><span class="preprocessor"></span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">/* Buffer offsets and sizes */</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="preprocessor">#define XOFF    MAXPP1       </span><span class="comment">/* offset for x() frame      */</span><span class="preprocessor"></span></div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="preprocessor">#define LX      (XOFF+FRSZ)  </span><span class="comment">/* Length of x() buffer      */</span><span class="preprocessor"></span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="preprocessor">#define XQOFF   (MAXPP1)     </span><span class="comment">/* xq() offset before current subframe */</span><span class="preprocessor"></span></div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="preprocessor">#define LXQ     (XQOFF+FRSZ) </span><span class="comment">/* Length of xq() buffer */</span><span class="preprocessor"></span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="preprocessor">#define LTMOFF   (MAXPP1)         </span><span class="comment">/* Long-Term filter Memory OFFset */</span><span class="preprocessor"></span></div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">/* Long-term postfilter */</span></div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="preprocessor">#define DPPQNS 4             </span><span class="comment">/* Delta pitch period for search             */</span><span class="preprocessor"></span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="preprocessor">#define NINT  20             </span><span class="comment">/* length of filter interpolation            */</span><span class="preprocessor"></span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="preprocessor">#define ATHLD1 0.55          </span><span class="comment">/* threshold on normalized pitch correlation */</span><span class="preprocessor"></span></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="preprocessor">#define ATHLD2 0.80          </span><span class="comment">/* threshold on normalized pitch correlation */</span><span class="preprocessor"></span></div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="preprocessor">#define ScLTPF 0.3           </span><span class="comment">/* scaling of LTPF coefficient               */</span><span class="preprocessor"></span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="comment">/* coarse pitch search */</span></div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="preprocessor">#define cpp_Qvalue      2</span></div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="preprocessor">#define cpp_scale       (1&lt;&lt;cpp_Qvalue)</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="preprocessor">#define MAX_NPEAKS 7</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="preprocessor">#define MPTH4   0.3     </span><span class="comment">/* value to use for MPTH[] with index &gt;= 4 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="preprocessor">#define DEVTH   0.25      </span><span class="comment">/* pitch period DEViation THreshold   */</span><span class="preprocessor"></span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="preprocessor">#define TH1         0.73    </span><span class="comment">/* first threshold for cor*cor/energy       */</span><span class="preprocessor"></span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="preprocessor">#define TH2         0.4     </span><span class="comment">/* second threshold for cor*cor/energy      */</span><span class="preprocessor"></span></div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="preprocessor">#define LPTH1   0.79    </span><span class="comment">/* Last Pitch cor*cor/energy THreshold 1 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;<span class="preprocessor">#define LPTH2   0.43    </span><span class="comment">/* Last Pitch cor*cor/energy THreshold 2 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="preprocessor">#define MPDTH   0.065   </span><span class="comment">/* Multiple Pitch Deviation THreshold */</span><span class="preprocessor"></span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="preprocessor">#define SMDTH   0.095   </span><span class="comment">/* Sub-Multiple pitch Deviation THreshold */</span><span class="preprocessor"></span></div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="preprocessor">#define SMDTH1  (1.0-SMDTH)</span></div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="preprocessor">#define SMDTH2  (1.0+SMDTH)</span></div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="preprocessor">#define MPR1    (1.0-MPDTH)    </span><span class="comment">/* Multiple Pitch Range lower threshold */</span><span class="preprocessor"></span></div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="preprocessor">#define MPR2    (1.0+MPDTH)    </span><span class="comment">/* Multiple Pitch Range upper threshold */</span><span class="preprocessor"></span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="comment">/* Decimation parameters */</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="preprocessor">#define DECF    4   </span><span class="comment">/* DECimation Factor for coarse pitch period search   */</span><span class="preprocessor"></span></div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="preprocessor">#define FRSZD   (FRSZ/DECF)    </span><span class="comment">/* FRame SiZe in DECF:1 lowband domain        */</span><span class="preprocessor"></span></div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="preprocessor">#define MAXPPD  (MAXPP/DECF)   </span><span class="comment">/* MAX Pitch in DECF:1, if MAXPP!=4n, ceil()  */</span><span class="preprocessor"></span></div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="preprocessor">#define MINPPD  ((int) (MINPP/DECF))   </span><span class="comment">/* MINimum Pitch Period in DECF:1     */</span><span class="preprocessor"></span></div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="preprocessor">#define PWSZD   (PWSZ/DECF) </span><span class="comment">/* Pitch ana. Window SiZe in DECF:1 domain    */</span><span class="preprocessor"></span></div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="preprocessor">#define DFO 4</span></div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="preprocessor">#define MAXPPD1 (MAXPPD + 1)</span></div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="preprocessor">#define LXD     (MAXPPD1 + PWSZD)</span></div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="preprocessor">#define XDOFF   (LXD - FRSZD)</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="preprocessor">#define HMAXPPD (MAXPPD/2)</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="preprocessor">#define M1      (MINPPD - 1)</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="preprocessor">#define M2      MAXPPD1</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="preprocessor">#define HDECF   (DECF/2)</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="preprocessor">#define INVDECF (1.0F/(float)(DECF)) </span><span class="comment">/* INVerse of DECF (decimation factor) */</span><span class="preprocessor"></span></div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="comment">/* Front-end 150 Hz highpass filter */</span></div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="preprocessor">#define HPO     2       </span><span class="comment">/* High-pass filter order */</span><span class="preprocessor"></span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment">/* LPC weighting filter */</span></div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#define LTWFL   0.5</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment">/* pole-zero NFC shaping filter */</span></div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="preprocessor">#define NSTORDER 8</span></div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* BV16CNST_H */</span><span class="preprocessor"></span></div></div><!-- fragment --></div><!-- contents -->
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