actionscript-3 – Working with Sound – Stop Playing a Sound

import flash.net.URLRequest;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.events.Event;

var snd:Sound; = new Sound();
var sndChannel:SoundChannel
var sndTimer:Timer;

snd.addEventListener(Event.COMPLETE, soundLoaded);
snd.load(new URLRequest("soundFile.mp3")); //load after adding the complete event

function soundLoaded(e:Event):void 
{
    sndChannel = snd.play();

    //Create a timer to wait 1 second
    sndTimer = new Timer(1000, 1);
    sndTimer.addEventListener(TimerEvent.TIMER, stopSound, false, 0, true);
    sndTimer.start();
}

function stopSound(e:Event = null):void {
    sndChannel.stop(); //Stop the sound
}

if you want to reproduce, please indicate the source:
actionscript-3 – Working with Sound – Stop Playing a Sound - CodeDay