Stop embedded sound playing before clip starts

Question

Hi,
When I test my app on a device the sound starts playing before the movieclip.  The sound is embedded in an external swf.  I can access the sound using:
SoundMixer.soundTransform = new SoundTransform(0);
But I can't work out where to turn it back to 1 so it starts when the movie starts.  The code I'm currently using is below, but the sound still starts before the clip does.
Thanks.
private function startMovieOne(event:MouseEvent):void
            var defaultSWF:URLRequest = new URLRequest("movieOne.swf");
            loader.load(defaultSWF);
            loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, showProgress);
            loader.contentLoaderInfo.addEventListener(Event.INIT, onInit);
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
        private function onInit(evt:Event):void
            loader.contentLoaderInfo.removeEventListener(Event.INIT, onInit);
            SoundMixer.soundTransform = new SoundTransform(0);       
        private function showProgress(evt:ProgressEvent):void
            loader.contentLoaderInfo.removeEventListener(ProgressEvent.PROGRESS, showProgress);
            var loadProgress_percent:Number = Math.floor((evt.bytesLoaded * 100) / (evt.bytesTotal));
            trace("loadProgress_percent: " + loadProgress_percent);
        private function onComplete(evt:Event):void
            movieTwo_mc.addChild(loader);
            trace("loaded");
            loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, onComplete);
            SoundMixer.soundTransform = new SoundTransform(1);

Answer 1

i assume the sound is attached to a movieclip timeline (otherwise, use the sound reference).  movieclip's have a soundTransform property that you can use to control their sound.  you should be using that instead of the global SoundMixer soundTransform unless you have more than 1 sound and you want to control them all concurrently.
and, you use the soundTransform like this:
var st:SoundTransform=your_mc.soundTransform;  // though, you could continue to use the less desireable, var st:SoundTransform=SoundMixer.soundTransfom;
st.volume=1;
your_mc.soundTransform=st;  // again, if you continued using the global SoundMixer soundtransform, this would be:  SoundMixer.soundTransform=st;