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<h1>cvsd_decode_bs.h File Reference</h1><code>#include <<a class="el" href="gr__sync__interpolator_8h_source.html">gr_sync_interpolator.h</a>></code><br/>
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Include dependency graph for cvsd_decode_bs.h:</div>
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<p><a href="cvsd__decode__bs_8h_source.html">Go to the source code of this file.</a></p>
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<tr><td colspan="2"><h2>Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classcvsd__decode__bs.html">cvsd_decode_bs</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">This block performs CVSD audio decoding. Its design and implementation is modeled after the CVSD encoder/decoder specifications defined in the Bluetooth standard. <a href="classcvsd__decode__bs.html#_details">More...</a><br/></td></tr>
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">cvsd_decode_bs_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="cvsd__decode__bs_8h.html#a52e4686902089af60d77ae9c8d6ca609">cvsd_make_decode_bs</a> (short min_step=10, short max_step=1280, double step_decay=0.9990234375, double accum_decay=0.96875, int K=32, int J=4, short pos_accum_max=32767, short neg_accum_max=-32767)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor parameters to initialize the CVSD decoder. The default values are modeled after the Bluetooth standard and should not be changed, except by an advanced user. <a href="#a52e4686902089af60d77ae9c8d6ca609"></a><br/></td></tr>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="a52e4686902089af60d77ae9c8d6ca609"></a><!-- doxytag: member="cvsd_decode_bs.h::cvsd_make_decode_bs" ref="a52e4686902089af60d77ae9c8d6ca609" args="(short min_step=10, short max_step=1280, double step_decay=0.9990234375, double accum_decay=0.96875, int K=32, int J=4, short pos_accum_max=32767, short neg_accum_max=-32767)" -->
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<td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">cvsd_decode_bs_sptr</a> cvsd_make_decode_bs </td>
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<td class="paramtype">short </td>
<td class="paramname"> <em>min_step</em> = <code>10</code>, </td>
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<td class="paramtype">short </td>
<td class="paramname"> <em>max_step</em> = <code>1280</code>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>step_decay</em> = <code>0.9990234375</code>, </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>accum_decay</em> = <code>0.96875</code>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>K</em> = <code>32</code>, </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>J</em> = <code>4</code>, </td>
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<td class="paramtype">short </td>
<td class="paramname"> <em>pos_accum_max</em> = <code>32767</code>, </td>
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<td class="paramtype">short </td>
<td class="paramname"> <em>neg_accum_max</em> = <code>-32767</code></td><td> </td>
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<p>Constructor parameters to initialize the CVSD decoder. The default values are modeled after the Bluetooth standard and should not be changed, except by an advanced user. </p>
<dl><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>min_step</em> </td><td>Minimum step size used to update the internal reference. Default: "10" </td></tr>
<tr><td valign="top"></td><td valign="top"><em>max_step</em> </td><td>Maximum step size used to update the internal reference. Default: "1280" </td></tr>
<tr><td valign="top"></td><td valign="top"><em>step_decay</em> </td><td>Decay factor applied to step size when there is not a run of J output 1s or 0s. Default: "0.9990234375" (i.e. 1-1/1024) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>accum_decay</em> </td><td>Decay factor applied to the internal reference during every interation of the codec. Default: "0.96875" (i.e. 1-1/32) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>K;</em> </td><td>Size of shift register; the number of output bits remembered by codec (must be less or equal to 32). Default: "32" </td></tr>
<tr><td valign="top"></td><td valign="top"><em>J;</em> </td><td>Number of bits in the shift register that are equal; i.e. the size of a run of 1s, 0s. Default: "4" </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pos_accum_max</em> </td><td>Maximum integer value allowed for the internal reference. Default: "32767" (2^15 - 1 or MAXSHORT) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>neg_accum_max</em> </td><td>Minimum integer value allowed for the internal reference. Default: "-32767" (-2^15 + 1 or MINSHORT+1) </td></tr>
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