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<li class="navelem"><a class="el" href="dir_7672bb780010713f2d2504f90f5cfe22.html">spectral</a></li> </ul>
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<div class="title">filterbank_mel.h File Reference</div> </div>
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<p>Filterbank object coefficients initialization.
<a href="#details">More...</a></p>
<p><a href="filterbank__mel_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ace464798e8975dbe5f8f0ec2892f961f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="filterbank__mel_8h.html#ace464798e8975dbe5f8f0ec2892f961f">aubio_filterbank_set_triangle_bands</a> (<a class="el" href="filterbank_8h.html#a97f70b0902f682434ee42189eaac8226">aubio_filterbank_t</a> *fb, <a class="el" href="structfvec__t.html">fvec_t</a> *freqs, <a class="el" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> samplerate)</td></tr>
<tr class="memdesc:ace464798e8975dbe5f8f0ec2892f961f"><td class="mdescLeft"> </td><td class="mdescRight">filterbank initialization with triangular and overlapping bands <a href="#ace464798e8975dbe5f8f0ec2892f961f">More...</a><br /></td></tr>
<tr class="separator:ace464798e8975dbe5f8f0ec2892f961f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3b8bc12b63734459675d28cb49ec4bbb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="filterbank__mel_8h.html#a3b8bc12b63734459675d28cb49ec4bbb">aubio_filterbank_set_mel_coeffs_slaney</a> (<a class="el" href="filterbank_8h.html#a97f70b0902f682434ee42189eaac8226">aubio_filterbank_t</a> *fb, <a class="el" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> samplerate)</td></tr>
<tr class="memdesc:a3b8bc12b63734459675d28cb49ec4bbb"><td class="mdescLeft"> </td><td class="mdescRight">filterbank initialization for Mel filters using Slaney's coefficients <a href="#a3b8bc12b63734459675d28cb49ec4bbb">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Filterbank object coefficients initialization. </p>
<p>Functions to create set the <a class="el" href="filterbank_8h.html#a97f70b0902f682434ee42189eaac8226" title="filterbank object ">aubio_filterbank_t</a> coefficients to</p><ul>
<li><a class="el" href="filterbank__mel_8h.html#ace464798e8975dbe5f8f0ec2892f961f" title="filterbank initialization with triangular and overlapping bands ">aubio_filterbank_set_triangle_bands</a>: overlapping triangular bands,</li>
<li><a class="el" href="filterbank__mel_8h.html#a3b8bc12b63734459675d28cb49ec4bbb" title="filterbank initialization for Mel filters using Slaney's coefficients ">aubio_filterbank_set_mel_coeffs_slaney</a>: Mel frequency bands. </li>
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<p class="definition">Definition in file <a class="el" href="filterbank__mel_8h_source.html">filterbank_mel.h</a>.</p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a3b8bc12b63734459675d28cb49ec4bbb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3b8bc12b63734459675d28cb49ec4bbb">◆ </a></span>aubio_filterbank_set_mel_coeffs_slaney()</h2>
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<td class="memname"><a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> aubio_filterbank_set_mel_coeffs_slaney </td>
<td>(</td>
<td class="paramtype"><a class="el" href="filterbank_8h.html#a97f70b0902f682434ee42189eaac8226">aubio_filterbank_t</a> * </td>
<td class="paramname"><em>fb</em>, </td>
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<td class="paramtype"><a class="el" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> </td>
<td class="paramname"><em>samplerate</em> </td>
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<p>filterbank initialization for Mel filters using Slaney's coefficients </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">fb</td><td>filterbank object </td></tr>
<tr><td class="paramname">samplerate</td><td>audio sampling rate</td></tr>
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</dd>
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<p>The filter coefficients are built according to Malcolm Slaney's Auditory Toolbox, available at <a href="http://cobweb.ecn.purdue.edu/~malcolm/interval/1998-010/">http://cobweb.ecn.purdue.edu/~malcolm/interval/1998-010/</a> (see file mfcc.m). </p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="spectral_2test-filterbank_mel_8c-example.html#a5">spectral/test-filterbank_mel.c</a>.</dd>
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<a id="ace464798e8975dbe5f8f0ec2892f961f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ace464798e8975dbe5f8f0ec2892f961f">◆ </a></span>aubio_filterbank_set_triangle_bands()</h2>
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<td class="memname"><a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> aubio_filterbank_set_triangle_bands </td>
<td>(</td>
<td class="paramtype"><a class="el" href="filterbank_8h.html#a97f70b0902f682434ee42189eaac8226">aubio_filterbank_t</a> * </td>
<td class="paramname"><em>fb</em>, </td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>freqs</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> </td>
<td class="paramname"><em>samplerate</em> </td>
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<td>)</td>
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<p>filterbank initialization with triangular and overlapping bands </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">fb</td><td>filterbank object </td></tr>
<tr><td class="paramname">freqs</td><td>arbitrary array of boundary frequencies </td></tr>
<tr><td class="paramname">samplerate</td><td>audio sampling rate</td></tr>
</table>
</dd>
</dl>
<p>This function computes the coefficients of the filterbank based on the boundaries found in freqs, in Hz, and using triangular overlapping bands. </p>
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