I tested three different methods of embedding sound effects into a Flex application:
1) Using the <mx:SoundEffect /> tag, an inline @Embed, and mouseDownEffect
2) Using the [...]]]> I was investigating a bug today with embedded sounds over a Remote Desktop Connection and came up with the following code that I thought I’d share.

I tested three different methods of embedding sound effects into a Flex application:
1) Using the <mx:SoundEffect /> tag, an inline @Embed, and mouseDownEffect
2) Using the [Embed] metadata, <mx:SoundEffect /> with a binding to my embedded asset, and mouseDownEffect
3) Using the [Embed] metadata, the SoundAsset class, and the SoundAsset.play() method.

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;

            private var alert:Alert;

            private function showAlert():void {
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO);
            }
        ]]>
    </mx:Script>

    <mx:SoundEffect id="soundEffect" source="@Embed(source='assets/ding.mp3')" />

    <mx:Button label="Delete Internet?" click="showAlert();" mouseDownEffect="{soundEffect}" />

</mx:Application>

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;

            [Bindable]
            [Embed('assets/ding.mp3')]
            private var ding_mp3:Class;

            private var alert:Alert;

            private function showAlert():void {
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO);
            }
        ]]>
    </mx:Script>

    <mx:SoundEffect id="soundEffect" source="{ding_mp3}" />

    <mx:Button label="Delete Internet?" click="showAlert(); " mouseDownEffect="{soundEffect}" />

</mx:Application>

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.core.SoundAsset;

            [Embed('assets/ding.mp3')]
            private var ding_mp3:Class;

            private var ding:SoundAsset = new ding_mp3() as SoundAsset;

            private var alert:Alert;

            private function showAlert():void {
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO);
            }
        ]]>
    </mx:Script>

    <mx:Button label="Delete Internet?" click="showAlert(); ding.play()" />

</mx:Application>