Link to QtAudioEngine on multimedia landing page

Change-Id: I858644e16f668d0ee4ca820b3cc65f60fd3208dc
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

doc/doc.pro

@@ -20,6 +20,7 @@ OTHER_FILES += \
     src/radiooverview.qdoc \
     src/videooverview.qdoc \
     src/examples/audiodevices.qdoc \
+    src/examples/audioengine.qdoc \
     src/examples/audioinput.qdoc \
     src/examples/audiooutput.qdoc \
     src/examples/audiorecorder.qdoc \

doc/src/examples/audioengine.qdoc

@@ -0,0 +1,39 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** GNU Free Documentation License
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms
+** and conditions contained in a signed written agreement between you
+** and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example audioengine
+    \title AudioEngine Example
+    \ingroup audioengine_examples
+    \brief The Audio Engine example demonstrates 3D sound control using
+    the QtAudioEngine API.
+
+    \image audioengine.png
+
+*/
+
+

doc/src/multimedia.qdoc

@@ -46,7 +46,7 @@ Qt Multimedia offers APIs for doing many multimedia related tasks:
 \li Record audio and compress it
 \li Tune and listen to radio stations, and receive radio program information
 \li Use a camera, including viewfinder, image capture, and movie recording
-\li Play 3D positional audio
+\li Play 3D positional audio with \l {QtAudioEngine Overview} {QtAudioEngine}
 \li Decode audio media files into memory for processing
 \li Accessing video frames or audio buffers as they are played or recorded
 \endlist
@@ -137,6 +137,11 @@ For some quick recipes for specific tasks, look at the overviews above and consu
         \li \l {Camera Example}{camera}, \l declarative-camera
         \li \l Camera
         \li QCamera, QMediaRecorder
+    \row
+        \li 3D sound sources
+        \li \l {AudioEngine Example}{Audio Engine}
+        \li \l {AudioEngine}, \l Sound
+        \li
 \endtable
 
 \section1 Limitations
@@ -165,7 +170,7 @@ The following elements are accessed by using:
 import QtMultimedia 5.0
 \endqml
 \annotatedlist multimedia_qml
-The following elements are accessed by using:
+The following elements are accessed by using \l {QtAudioEngine Overview} {QtAudioEngine}:
 \qml
 import QtAudioEngine 1.0
 \endqml