Qt4 : Spref - Audio: Use a doubleBox not a slider for normalizer

modules/gui/qt4/ui/sprefs_audio.ui

@@ -224,19 +224,6 @@
       <property name="spacing" >
        <number>6</number>
       </property>
-      <item row="1" column="1" >
-       <widget class="QSlider" name="horizontalSlider" >
-        <property name="toolTip" >
-         <string>&lt;html>&lt;head>&lt;meta name="qrichtext" content="1" />&lt;style type="text/css">
-p, li { white-space: pre-wrap; }
-&lt;/style>&lt;/head>&lt;body style=" font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal; text-decoration:none;">
-&lt;p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Maximum volume when using the volume normalizer&lt;/p>&lt;/body>&lt;/html></string>
-        </property>
-        <property name="orientation" >
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
       <item row="2" column="1" >
        <widget class="QComboBox" name="visualisation" />
       </item>
@@ -261,6 +248,13 @@ p, li { white-space: pre-wrap; }
         </property>
        </widget>
       </item>
+      <item row="1" column="1" >
+       <widget class="QDoubleSpinBox" name="volNormalizer" >
+        <property name="alignment" >
+         <set>Qt::AlignRight</set>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>