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 <span id="projectnumber">0.4.2~alpha</span>
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<a href="#typedef-members">Typedefs</a> |
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<div class="title">fft.h File Reference</div> </div>
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<p>Fast Fourier Transform.
<a href="#details">More...</a></p>
<p><a href="fft_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="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ad506b94ab0c39da949d97064e394d2c9"><td class="memItemLeft" align="right" valign="top">typedef struct _aubio_fft_t </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a></td></tr>
<tr class="memdesc:ad506b94ab0c39da949d97064e394d2c9"><td class="mdescLeft"> </td><td class="mdescRight">FFT object. <a href="#ad506b94ab0c39da949d97064e394d2c9">More...</a><br /></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a4673d96bb99fa2e758352cc177516465"><td class="memItemLeft" align="right" valign="top"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a4673d96bb99fa2e758352cc177516465">new_aubio_fft</a> (<a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> size)</td></tr>
<tr class="memdesc:a4673d96bb99fa2e758352cc177516465"><td class="mdescLeft"> </td><td class="mdescRight">create new FFT computation object <a href="#a4673d96bb99fa2e758352cc177516465">More...</a><br /></td></tr>
<tr class="separator:a4673d96bb99fa2e758352cc177516465"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac23532904ba415446d5c7afd8476925c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#ac23532904ba415446d5c7afd8476925c">del_aubio_fft</a> (<a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> *s)</td></tr>
<tr class="memdesc:ac23532904ba415446d5c7afd8476925c"><td class="mdescLeft"> </td><td class="mdescRight">delete FFT object <a href="#ac23532904ba415446d5c7afd8476925c">More...</a><br /></td></tr>
<tr class="separator:ac23532904ba415446d5c7afd8476925c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4dd3dca0e14d36d79cac3cfbb4cd013d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a4dd3dca0e14d36d79cac3cfbb4cd013d">aubio_fft_do</a> (<a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> *s, <a class="el" href="structfvec__t.html">fvec_t</a> *input, <a class="el" href="structcvec__t.html">cvec_t</a> *spectrum)</td></tr>
<tr class="memdesc:a4dd3dca0e14d36d79cac3cfbb4cd013d"><td class="mdescLeft"> </td><td class="mdescRight">compute forward FFT <a href="#a4dd3dca0e14d36d79cac3cfbb4cd013d">More...</a><br /></td></tr>
<tr class="separator:a4dd3dca0e14d36d79cac3cfbb4cd013d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3904caf3f240ae84093a53c4bfca8bb4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a3904caf3f240ae84093a53c4bfca8bb4">aubio_fft_rdo</a> (<a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> *s, <a class="el" href="structcvec__t.html">cvec_t</a> *spectrum, <a class="el" href="structfvec__t.html">fvec_t</a> *output)</td></tr>
<tr class="memdesc:a3904caf3f240ae84093a53c4bfca8bb4"><td class="mdescLeft"> </td><td class="mdescRight">compute backward (inverse) FFT <a href="#a3904caf3f240ae84093a53c4bfca8bb4">More...</a><br /></td></tr>
<tr class="separator:a3904caf3f240ae84093a53c4bfca8bb4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8e0ce093eded5b91d50dc5f87205385a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a8e0ce093eded5b91d50dc5f87205385a">aubio_fft_do_complex</a> (<a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> *s, <a class="el" href="structfvec__t.html">fvec_t</a> *input, <a class="el" href="structfvec__t.html">fvec_t</a> *compspec)</td></tr>
<tr class="memdesc:a8e0ce093eded5b91d50dc5f87205385a"><td class="mdescLeft"> </td><td class="mdescRight">compute forward FFT <a href="#a8e0ce093eded5b91d50dc5f87205385a">More...</a><br /></td></tr>
<tr class="separator:a8e0ce093eded5b91d50dc5f87205385a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afa7645fa7ca8089c09f44f8f4a039142"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#afa7645fa7ca8089c09f44f8f4a039142">aubio_fft_rdo_complex</a> (<a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> *s, <a class="el" href="structfvec__t.html">fvec_t</a> *compspec, <a class="el" href="structfvec__t.html">fvec_t</a> *output)</td></tr>
<tr class="memdesc:afa7645fa7ca8089c09f44f8f4a039142"><td class="mdescLeft"> </td><td class="mdescRight">compute backward (inverse) FFT from real/imag <a href="#afa7645fa7ca8089c09f44f8f4a039142">More...</a><br /></td></tr>
<tr class="separator:afa7645fa7ca8089c09f44f8f4a039142"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a780ed8e8b0cc5ea8aa9c92540db4ddb6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a780ed8e8b0cc5ea8aa9c92540db4ddb6">aubio_fft_get_spectrum</a> (<a class="el" href="structfvec__t.html">fvec_t</a> *compspec, <a class="el" href="structcvec__t.html">cvec_t</a> *spectrum)</td></tr>
<tr class="memdesc:a780ed8e8b0cc5ea8aa9c92540db4ddb6"><td class="mdescLeft"> </td><td class="mdescRight">convert real/imag spectrum to norm/phas spectrum <a href="#a780ed8e8b0cc5ea8aa9c92540db4ddb6">More...</a><br /></td></tr>
<tr class="separator:a780ed8e8b0cc5ea8aa9c92540db4ddb6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afe86b6f69e82a74bbe77f8ddf11d641e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#afe86b6f69e82a74bbe77f8ddf11d641e">aubio_fft_get_realimag</a> (<a class="el" href="structcvec__t.html">cvec_t</a> *spectrum, <a class="el" href="structfvec__t.html">fvec_t</a> *compspec)</td></tr>
<tr class="memdesc:afe86b6f69e82a74bbe77f8ddf11d641e"><td class="mdescLeft"> </td><td class="mdescRight">convert real/imag spectrum to norm/phas spectrum <a href="#afe86b6f69e82a74bbe77f8ddf11d641e">More...</a><br /></td></tr>
<tr class="separator:afe86b6f69e82a74bbe77f8ddf11d641e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8bf667826967968ffeb2940d7648c6f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#ac8bf667826967968ffeb2940d7648c6f">aubio_fft_get_phas</a> (<a class="el" href="structfvec__t.html">fvec_t</a> *compspec, <a class="el" href="structcvec__t.html">cvec_t</a> *spectrum)</td></tr>
<tr class="memdesc:ac8bf667826967968ffeb2940d7648c6f"><td class="mdescLeft"> </td><td class="mdescRight">compute phas spectrum from real/imag parts <a href="#ac8bf667826967968ffeb2940d7648c6f">More...</a><br /></td></tr>
<tr class="separator:ac8bf667826967968ffeb2940d7648c6f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0102f12ebde69f03c8a563dfb88127e1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a0102f12ebde69f03c8a563dfb88127e1">aubio_fft_get_imag</a> (<a class="el" href="structcvec__t.html">cvec_t</a> *spectrum, <a class="el" href="structfvec__t.html">fvec_t</a> *compspec)</td></tr>
<tr class="memdesc:a0102f12ebde69f03c8a563dfb88127e1"><td class="mdescLeft"> </td><td class="mdescRight">compute imaginary part from the norm/phas cvec <a href="#a0102f12ebde69f03c8a563dfb88127e1">More...</a><br /></td></tr>
<tr class="separator:a0102f12ebde69f03c8a563dfb88127e1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af0dfc2fa19266b82c19ffeab0ecbc28d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#af0dfc2fa19266b82c19ffeab0ecbc28d">aubio_fft_get_norm</a> (<a class="el" href="structfvec__t.html">fvec_t</a> *compspec, <a class="el" href="structcvec__t.html">cvec_t</a> *spectrum)</td></tr>
<tr class="memdesc:af0dfc2fa19266b82c19ffeab0ecbc28d"><td class="mdescLeft"> </td><td class="mdescRight">compute norm component from real/imag parts <a href="#af0dfc2fa19266b82c19ffeab0ecbc28d">More...</a><br /></td></tr>
<tr class="separator:af0dfc2fa19266b82c19ffeab0ecbc28d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0f3596300f91f074a6e23efd194d9941"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="fft_8h.html#a0f3596300f91f074a6e23efd194d9941">aubio_fft_get_real</a> (<a class="el" href="structcvec__t.html">cvec_t</a> *spectrum, <a class="el" href="structfvec__t.html">fvec_t</a> *compspec)</td></tr>
<tr class="memdesc:a0f3596300f91f074a6e23efd194d9941"><td class="mdescLeft"> </td><td class="mdescRight">compute real part from norm/phas components <a href="#a0f3596300f91f074a6e23efd194d9941">More...</a><br /></td></tr>
<tr class="separator:a0f3596300f91f074a6e23efd194d9941"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Fast Fourier Transform. </p>
<p>Depending on how aubio was compiled, FFT are computed using one of:</p><ul>
<li><a href="http://www.kurims.kyoto-u.ac.jp/~ooura/fft.html">Ooura</a></li>
<li><a href="http://www.fftw.org">FFTW3</a></li>
<li><a href="https://developer.apple.com/library/mac/#documentation/Accelerate/Reference/vDSPRef/Reference/reference.html">vDSP</a> </li>
</ul>
<p class="definition">Definition in file <a class="el" href="fft_8h_source.html">fft.h</a>.</p>
</div><h2 class="groupheader">Typedef Documentation</h2>
<a id="ad506b94ab0c39da949d97064e394d2c9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad506b94ab0c39da949d97064e394d2c9">◆ </a></span>aubio_fft_t</h2>
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<td class="memname">typedef struct _aubio_fft_t <a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a></td>
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</div><div class="memdoc">
<p>FFT object. </p>
<p>This object computes forward and backward FFTs. </p>
<p class="definition">Definition at line <a class="el" href="fft_8h_source.html#l00046">46</a> of file <a class="el" href="fft_8h_source.html">fft.h</a>.</p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a4dd3dca0e14d36d79cac3cfbb4cd013d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4dd3dca0e14d36d79cac3cfbb4cd013d">◆ </a></span>aubio_fft_do()</h2>
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<td class="memname">void aubio_fft_do </td>
<td>(</td>
<td class="paramtype"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em> </td>
</tr>
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<td></td>
<td>)</td>
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<p>compute forward FFT </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>fft object as returned by new_aubio_fft </td></tr>
<tr><td class="paramname">input</td><td>input signal </td></tr>
<tr><td class="paramname">spectrum</td><td>output spectrum </td></tr>
</table>
</dd>
</dl>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="src_2spectral_2test-fft_8c-example.html#a6">src/spectral/test-fft.c</a>.</dd>
</dl>
</div>
</div>
<a id="a8e0ce093eded5b91d50dc5f87205385a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8e0ce093eded5b91d50dc5f87205385a">◆ </a></span>aubio_fft_do_complex()</h2>
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<td class="memname">void aubio_fft_do_complex </td>
<td>(</td>
<td class="paramtype"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em> </td>
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<td>)</td>
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<p>compute forward FFT </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>fft object as returned by new_aubio_fft </td></tr>
<tr><td class="paramname">input</td><td>real input signal </td></tr>
<tr><td class="paramname">compspec</td><td>complex output fft real/imag </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a0102f12ebde69f03c8a563dfb88127e1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0102f12ebde69f03c8a563dfb88127e1">◆ </a></span>aubio_fft_get_imag()</h2>
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<td class="memname">void aubio_fft_get_imag </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em> </td>
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<td></td>
<td>)</td>
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<p>compute imaginary part from the norm/phas cvec </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">spectrum</td><td>norm/phas input array </td></tr>
<tr><td class="paramname">compspec</td><td>real/imag output fft array </td></tr>
</table>
</dd>
</dl>
</div>
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<a id="af0dfc2fa19266b82c19ffeab0ecbc28d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af0dfc2fa19266b82c19ffeab0ecbc28d">◆ </a></span>aubio_fft_get_norm()</h2>
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<td class="memname">void aubio_fft_get_norm </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em> </td>
</tr>
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<td></td>
<td>)</td>
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<p>compute norm component from real/imag parts </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">compspec</td><td>real/imag input fft array </td></tr>
<tr><td class="paramname">spectrum</td><td>cvec norm/phas output array </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ac8bf667826967968ffeb2940d7648c6f">◆ </a></span>aubio_fft_get_phas()</h2>
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<td class="memname">void aubio_fft_get_phas </td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em>, </td>
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<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em> </td>
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<p>compute phas spectrum from real/imag parts </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">compspec</td><td>real/imag input fft array </td></tr>
<tr><td class="paramname">spectrum</td><td>cvec norm/phas output array </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a0f3596300f91f074a6e23efd194d9941">◆ </a></span>aubio_fft_get_real()</h2>
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<td class="memname">void aubio_fft_get_real </td>
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<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em>, </td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em> </td>
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<p>compute real part from norm/phas components </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">spectrum</td><td>norm/phas input array </td></tr>
<tr><td class="paramname">compspec</td><td>real/imag output fft array </td></tr>
</table>
</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#afe86b6f69e82a74bbe77f8ddf11d641e">◆ </a></span>aubio_fft_get_realimag()</h2>
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<td class="memname">void aubio_fft_get_realimag </td>
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<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em>, </td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em> </td>
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<p>convert real/imag spectrum to norm/phas spectrum </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">compspec</td><td>real/imag input fft array </td></tr>
<tr><td class="paramname">spectrum</td><td>cvec norm/phas output array </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a780ed8e8b0cc5ea8aa9c92540db4ddb6">◆ </a></span>aubio_fft_get_spectrum()</h2>
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<td class="memname">void aubio_fft_get_spectrum </td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em> </td>
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<td>)</td>
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<p>convert real/imag spectrum to norm/phas spectrum </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">compspec</td><td>real/imag input fft array </td></tr>
<tr><td class="paramname">spectrum</td><td>cvec norm/phas output array </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a3904caf3f240ae84093a53c4bfca8bb4">◆ </a></span>aubio_fft_rdo()</h2>
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<td class="memname">void aubio_fft_rdo </td>
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<td class="paramtype"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td>
<td class="paramname"><em>s</em>, </td>
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<td class="paramtype"><a class="el" href="structcvec__t.html">cvec_t</a> * </td>
<td class="paramname"><em>spectrum</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>output</em> </td>
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<p>compute backward (inverse) FFT </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>fft object as returned by new_aubio_fft </td></tr>
<tr><td class="paramname">spectrum</td><td>input spectrum </td></tr>
<tr><td class="paramname">output</td><td>output signal </td></tr>
</table>
</dd>
</dl>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="src_2spectral_2test-fft_8c-example.html#a8">src/spectral/test-fft.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#afa7645fa7ca8089c09f44f8f4a039142">◆ </a></span>aubio_fft_rdo_complex()</h2>
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<td class="memname">void aubio_fft_rdo_complex </td>
<td>(</td>
<td class="paramtype"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td>
<td class="paramname"><em>s</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>compspec</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="structfvec__t.html">fvec_t</a> * </td>
<td class="paramname"><em>output</em> </td>
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<p>compute backward (inverse) FFT from real/imag </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>fft object as returned by new_aubio_fft </td></tr>
<tr><td class="paramname">compspec</td><td>real/imag input fft array </td></tr>
<tr><td class="paramname">output</td><td>real output array </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ac23532904ba415446d5c7afd8476925c">◆ </a></span>del_aubio_fft()</h2>
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<td class="memname">void del_aubio_fft </td>
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<td class="paramtype"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a> * </td>
<td class="paramname"><em>s</em></td><td>)</td>
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<p>delete FFT object </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>fft object as returned by new_aubio_fft </td></tr>
</table>
</dd>
</dl>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="src_2spectral_2test-fft_8c-example.html#a9">src/spectral/test-fft.c</a>.</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#a4673d96bb99fa2e758352cc177516465">◆ </a></span>new_aubio_fft()</h2>
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<td class="memname"><a class="el" href="fft_8h.html#ad506b94ab0c39da949d97064e394d2c9">aubio_fft_t</a>* new_aubio_fft </td>
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<td class="paramtype"><a class="el" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> </td>
<td class="paramname"><em>size</em></td><td>)</td>
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<p>create new FFT computation object </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">size</td><td>length of the FFT </td></tr>
</table>
</dd>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="src_2spectral_2test-fft_8c-example.html#a4">src/spectral/test-fft.c</a>.</dd>
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