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        KDE 4.4 PyKDE API Reference
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<h1>VolumeFaderEffect Class Reference</h1>
<code>from PyKDE4.phonon import *</code>
<p>
Inherits: Phonon.Effect &#x2192; <a href="http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qobject.html">QObject</a><br />

Namespace: Phonon.VolumeFaderEffect<br />
<h2>Detailed Description</h2>

<p>\class VolumeFaderEffect volumefadereffect.h Phonon/VolumeFaderEffect
Audio effect to gradually fade the audio volume.
</p>
<p>
This effect differs from gradually changing the output volume in that
a dedicated effect can change the volume in the smallest possible
steps while every other volume control will make more or less
noticeable steps.
</p>
<p>

<dl class="author" compact><dt><b>Author:</b></dt><dd> Matthias Kretz &lt;kretz@kde.org&gt; </dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd> AudioOutput.volume
</dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Enumerations</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="#FadeCurve">FadeCurve</a>&nbsp;</td><td class="memItemRight" valign="bottom">{&nbsp;Fade3Decibel, Fade6Decibel, Fade9Decibel, Fade12Decibel&nbsp;}</td></tr>
<tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../phonon/Phonon.VolumeFaderEffect.html#FadeCurve">Phonon.VolumeFaderEffect.FadeCurve</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#fadeCurve">fadeCurve</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#fadeIn">fadeIn</a> (self, int fadeTime)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#fadeOut">fadeOut</a> (self, int fadeTime)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#fadeTo">fadeTo</a> (self, float volume, int fadeTime)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#setFadeCurve">setFadeCurve</a> (self, <a href="../phonon/Phonon.VolumeFaderEffect.html#FadeCurve">Phonon.VolumeFaderEffect.FadeCurve</a> curve)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#setVolume">setVolume</a> (self, float volume)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#setVolumeDecibel">setVolumeDecibel</a> (self, float volumeDecibel)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#volume">volume</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="#volumeDecibel">volumeDecibel</a> (self)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="fadeCurve"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../phonon/Phonon.VolumeFaderEffect.html#FadeCurve">Phonon.VolumeFaderEffect.FadeCurve</a> fadeCurve</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="fadeIn"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> fadeIn</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"><em>fadeTime</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Tells the Fader to change the volume from the current volume to 100%
in <b>fadeTime</b> milliseconds.
Short for fadeTo(1.0, fadeTime).
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>fadeTime</em>&nbsp;</td><td> the fade duration in milliseconds
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> fadeTo
</dd></dl> <dl class="see" compact><dt><b>See also:</b></dt><dd> volume
</dd></dl>
</p></div></div><a class="anchor" name="fadeOut"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> fadeOut</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"><em>fadeTime</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Tells the Fader to change the volume from the current volume to 0%
in <b>fadeTime</b> milliseconds.
Short for fadeTo(0.0, fadeTime).
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>fadeTime</em>&nbsp;</td><td> the fade duration in milliseconds
</td></tr>
</table></dl>
<p> <dl class="see" compact><dt><b>See also:</b></dt><dd> fadeTo
</dd></dl>
</p></div></div><a class="anchor" name="fadeTo"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> fadeTo</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">float&nbsp;</td>
<td class="paramname"><em>volume</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"><em>fadeTime</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Tells the Fader to change the volume from the current value to
<b>volume</b> in <b>fadeTime</b> milliseconds
</p>
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd> fadeIn
</dd></dl> <dl class="see" compact><dt><b>See also:</b></dt><dd> fadeOut
</dd></dl>
</p></div></div><a class="anchor" name="setFadeCurve"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setFadeCurve</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype"><a href="../phonon/Phonon.VolumeFaderEffect.html#FadeCurve">Phonon.VolumeFaderEffect.FadeCurve</a>&nbsp;</td>
<td class="paramname"><em>curve</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="setVolume"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setVolume</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">float&nbsp;</td>
<td class="paramname"><em>volume</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="setVolumeDecibel"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setVolumeDecibel</td>
<td>(</td>
<td class="paramtype">&nbsp;<em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">float&nbsp;</td>
<td class="paramname"><em>volumeDecibel</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="volume"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">float volume</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="volumeDecibel"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">float volumeDecibel</td>
<td>(</td>
<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><hr><h2>Enumeration Documentation</h2><a class="anchor" name="FadeCurve"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr><td class="memname">FadeCurve</td>
</tr>
</table>
</div>
<div class="memdoc"><p>Determines the curve of the volume change.
</p><dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0"><tr><td valign="top"><em>Fade3Decibel</em>&nbsp;</td><td><tr><td valign="top"><em>Fade6Decibel</em>&nbsp;</td><td><tr><td valign="top"><em>Fade9Decibel</em>&nbsp;</td><td><tr><td valign="top"><em>Fade12Decibel</em>&nbsp;</td><td></table>
</dl>
</div></div><p>
</div>
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