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        <p class='location'>Module support_audio</p><div class="block items"><ul><li><a href="#enums">Enums</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'><a href='../index.html'>pnmixerlib</a></p><script>window.sidebarCurrent = {name: 'support_audio', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Module <a href='../index.html'>pnmixerlib</a>::<wbr><a class="mod" href=''>support_audio</a></span><span class='out-of-band'><span id='render-detail'>
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                       [<span class='inner'>&#x2212;</span>]
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               </span><a class='srclink' href='../../src/pnmixerlib/support_audio.rs.html#1-109' title='goto source code'>[src]</a></span></h1>
<div class='docblock'><p>Helper functions of the audio subsystem.</p>

<p>These functions are not directly connected to the <code>Audio</code> struct,
but are important helpers.</p>
</div><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
<table>
                       <tr class=' module-item'>
                           <td><a class="enum" href="enum.VolDir.html"
                                  title='enum pnmixerlib::support_audio::VolDir'>VolDir</a></td>
                           <td class='docblock-short'>
                                <p>The direction of a volume change.</p>
                           </td>
                       </tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
<table>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.audio_reload.html"
                                  title='fn pnmixerlib::support_audio::audio_reload'>audio_reload</a></td>
                           <td class='docblock-short'>
                                <p>Reload the audio system.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.get_playable_card_names.html"
                                  title='fn pnmixerlib::support_audio::get_playable_card_names'>get_playable_card_names</a></td>
                           <td class='docblock-short'>
                                <p>Get all playable card names.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.get_playable_chan_names.html"
                                  title='fn pnmixerlib::support_audio::get_playable_chan_names'>get_playable_chan_names</a></td>
                           <td class='docblock-short'>
                                <p>Get all playable channel names.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.lrint.html"
                                  title='fn pnmixerlib::support_audio::lrint'>lrint</a></td>
                           <td class='docblock-short'>
                                <p>Kinda mimics <code>lrint</code> from libm. If the direction of the volume change
is <code>Up</code> then calls <code>ceil()</code>, if it&#39;s <code>Down</code>, then calls <code>floor()</code>, otherwise
returns the value unchanged.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.percent_to_vol.html"
                                  title='fn pnmixerlib::support_audio::percent_to_vol'>percent_to_vol</a></td>
                           <td class='docblock-short'>
                                <p>Converts the percentage of the volume level (0-100) back to the actual
low-level representation of the volume, which depends on the volume
range.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.vol_change_to_voldir.html"
                                  title='fn pnmixerlib::support_audio::vol_change_to_voldir'>vol_change_to_voldir</a></td>
                           <td class='docblock-short'>
                                <p>Convert a volume change to the <code>VolDir</code> type.</p>
                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="fn" href="fn.vol_to_percent.html"
                                  title='fn pnmixerlib::support_audio::vol_to_percent'>vol_to_percent</a></td>
                           <td class='docblock-short'>
                                <p>Converts the actual volume of the audio configuration, which depends
on the volume range, to a scale of 0-100, reprenting the percentage
of the volume level.</p>
                           </td>
                       </tr></table></section>
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