How can I stop timeline sounds in external swf files from playing during loading?

Question

I am having a problem with timeline sounds in external swf files playing during loading in a main swf. Can anyone help me?
Here is some of the code from the main swf. I hope I have included enough.
Thanks.
import flash.events.MouseEvent;
import flash.display.MovieClip;
import flash.display.Loader;
import flash.events.ProgressEvent;
import flash.events.Event;
import flash.net.URLRequest;
import fl.events.SliderEvent;
import flash.media.SoundTransform;
preloader_mc.fill_mc.scaleX = 0;
var swfA:Array = ["part1.swf","part2.swf"];
var frameA:Array = [];
var currentLoader:Loader;
var swfTotalFrames:int;
var tl:MovieClip = this;
var st:SoundTransform = new SoundTransform()
var index:int = 0;
loadNextF();
play_slider.enabled = false;
function loadNextF():void{
                tl["loader_"+index] = new Loader();
                tl["loader_"+index].name = index.toString();
                tl["loader_"+index].contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,progressF);
                tl["loader_"+index].contentLoaderInfo.addEventListener(Event.COMPLETE,completeF);
                tl["loader_"+index].load(new URLRequest(swfA[index]));
function progressF(e:ProgressEvent):void{
                var fractionLoaded:Number = index/swfA.length+e.bytesLoaded/(e.bytesTotal*swfA.length);
                preloader_mc.fill_mc.scaleX = fractionLoaded;
                preloader_mc.tf.text = (100*fractionLoaded)+"% Loaded";
function completeF(e:Event):void{
                tl["loader_"+index].contentLoaderInfo.removeEventListener(ProgressEvent.PROGRESS,progress F);
                tl["loader_"+index].contentLoaderInfo.removeEventListener(Event.COMPLETE,completeF);
                SoundMixer.stopAll();
                var mc:MovieClip = MovieClip(tl["loader_"+index].content);
                mc.gotoAndStop(1);
                frameA.push(mc.totalFrames);
                index++;
                if(index<swfA.length){
                                loadNextF();
                } else {
                                // all loads complete.  start play.
                                restart_mc.buttonMode = true;
                                restart_mc.alpha = 1;
                                tl.addEventListener(Event.ENTER_FRAME,playUpdateF);
                                tl.removeChild(preloader_mc);
                                preloader_mc = null;
                                play_slider.enabled = true;
                                playpause_mc.alpha = 1;
                                currentLoader = tl["loader_0"];
                                tl.addChild(currentLoader);
                                MovieClip(currentLoader.content).play();
                                sliderParamsF();

Answer 1

import flash.events.MouseEvent;
import flash.display.MovieClip;
import flash.display.Loader;
import flash.events.ProgressEvent;
import flash.events.Event;
import flash.net.URLRequest;
import fl.events.SliderEvent;
import flash.media.SoundTransform;
preloader_mc.fill_mc.scaleX = 0;
var swfA:Array = ["part1.swf","part2.swf"];
var frameA:Array = [];
var currentLoader:Loader;
var swfTotalFrames:int;
var tl:MovieClip = this;
var st:SoundTransform = new SoundTransform()
var index:int = 0;
loadNextF();
play_slider.enabled = false;
function loadNextF():void{
    tl["loader_"+index] = new Loader();
    tl["loader_"+index].name = index.toString();
    tl["loader_"+index].contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,progressF);
    tl["loader_"+index].contentLoaderInfo.addEventListener(Event.COMPLETE,completeF);
    tl["loader_"+index].load(new URLRequest(swfA[index]));
function progressF(e:ProgressEvent):void{
    var fractionLoaded:Number = index/swfA.length+e.bytesLoaded/(e.bytesTotal*swfA.length);
    preloader_mc.fill_mc.scaleX = fractionLoaded;
    preloader_mc.tf.text = (100*fractionLoaded)+"% Loaded";
function completeF(e:Event):void{
    tl["loader_"+index].contentLoaderInfo.removeEventListener(ProgressEvent.PROGRESS,progress F);
    tl["loader_"+index].contentLoaderInfo.removeEventListener(Event.COMPLETE,completeF);
    SoundMixer.stopAll();
    var mc:MovieClip = MovieClip(tl["loader_"+index].content);
    mc.gotoAndStop(1);
    frameA.push(mc.totalFrames);
    index++;
    if(index<swfA.length){
        loadNextF();
    } else {
        // all loads complete.  start play.
        restart_mc.buttonMode = true;
        restart_mc.alpha = 1;
        tl.addEventListener(Event.ENTER_FRAME,playUpdateF);
        tl.removeChild(preloader_mc);
        preloader_mc = null;
        play_slider.enabled = true;
        playpause_mc.alpha = 1;
        currentLoader = tl["loader_0"];
        tl.addChild(currentLoader);
        MovieClip(currentLoader.content).play();
        sliderParamsF();
///////////////// start sliders /////////////////////////////////
sound_slider.addEventListener(SliderEvent.CHANGE,soundSliderF);
function soundSliderF(e:SliderEvent):void{
    st.volume = e.value/100;
    tl.soundTransform = st;
play_slider.addEventListener(SliderEvent.CHANGE,playSliderF);
play_slider.addEventListener(MouseEvent.MOUSE_DOWN,playSliderDownF);
//play_slider.addEventListener(MouseEvent.MOUSE_UP,playSliderUpF);
function playSliderDownF(e:MouseEvent):void{
    tl.removeEventListener(Event.ENTER_FRAME,playUpdateF);
    stage.addEventListener(MouseEvent.MOUSE_UP,playSliderUpF);
function playSliderUpF(e:MouseEvent):void{
    tl.addEventListener(Event.ENTER_FRAME,playUpdateF);
function playSliderF(e:SliderEvent):void{
    SoundMixer.stopAll();
    var frameNum:int = Math.ceil(swfTotalFrames*e.value/100);
    var partialTotalFrames:int = 0;
    for(var i:int=0;i<frameA.length;i++){
        partialTotalFrames += frameA[i];
        if(partialTotalFrames>=frameNum){
            break;
    partialTotalFrames -= frameA[i];
    //trace(i,frameNum,frameNum-partialTotalFrames);
    if(currentLoader!=tl["loader_"+(i)]){
        tl.removeChild(currentLoader);
        MovieClip(currentLoader.content).stop();
        currentLoader = tl["loader_"+(i)];
        tl.addChild(currentLoader);
    if(playpause_mc.currentFrame==1){
        MovieClip(currentLoader.content).gotoAndPlay(frameNum-partialTotalFrames);
    } else {
        MovieClip(currentLoader.content).gotoAndStop(frameNum-partialTotalFrames);
function sliderUpdateF(e:Event):void{
    var playedFrames:int = 0;
    for(var i:int=0;i<Number(currentLoader.name);i++){
        playedFrames += frameA[i];
    playedFrames += MovieClip(currentLoader.content).currentFrame;
    play_slider.value = Math.round(100*playedFrames/swfTotalFrames);
function sliderParamsF():void{
    swfTotalFrames = 0;
    for(var i:int=0;i<swfA.length;i++){
        swfTotalFrames += MovieClip(tl["loader_"+i].content).totalFrames;
///////////////// end  sliders //////////////////////////////////
///////////////// start playpause restart ///////////////////////
playpause_mc.addEventListener(MouseEvent.CLICK,playpauseF);
playpause_mc.alpha = .2;
restart_mc.addEventListener(MouseEvent.CLICK,restartF);
restart_mc.buttonMode = false;
restart_mc.alpha = .2;
function playpauseF(e:MouseEvent):void{
    if(!e.currentTarget.toggle){
        MovieClip(currentLoader.content).stop();
        tl.removeEventListener(Event.ENTER_FRAME,playUpdateF);
        e.currentTarget.gotoAndStop(2);
    } else {
        MovieClip(currentLoader.content).play();
        tl.addEventListener(Event.ENTER_FRAME,playUpdateF);
        e.currentTarget.gotoAndStop(1);
    e.currentTarget.toggle = !e.currentTarget.toggle;
///////////////// end playpause //////////////////////////////
function playUpdateF(e:Event):void{
    sliderUpdateF(e);
    var playingFrame:int = MovieClip(currentLoader.content).currentFrame;
    if(playingFrame==frameA[Number(currentLoader.name)]){
        // next loader
        MovieClip(currentLoader.content).stop();
        SoundMixer.stopAll();
        MovieClip(currentLoader.content).mute();
        var nextIndex:int = Number(currentLoader.name)+1;
        if(nextIndex<swfA.length){
            tl.removeChild(currentLoader);
            currentLoader = tl["loader_"+nextIndex];
            tl.addChild(currentLoader);
            MovieClip(currentLoader.content).gotoAndPlay(1);
        } else {
            tl.removeEventListener(Event.ENTER_FRAME,playUpdateF);
            playpause_mc.gotoAndStop(2);
            playpause_mc.toggle = !playpause_mc.toggle;
            //playpause_mc.alpha = .2;
            // all swfs have completed play
function restartF(e:MouseEvent):void{
    MovieClip(currentLoader.content).stop();
    tl.removeChild(currentLoader);
    SoundMixer.stopAll();
    MovieClip(currentLoader.content).mute();
    currentLoader = tl["loader_"+0];
    tl.addChild(currentLoader);
    if(playpause_mc.currentFrame==1){
        MovieClip(currentLoader.content).gotoAndPlay(1);
    } else {
        MovieClip(currentLoader.content).gotoAndStop(1);