duration (Sound.duration property) -- Flash CS3

Note: Flash Lite 2.0 supports this property for native Flash sound only. The sound formats that are specific to a host device are not supported.

Example

The following example loads a sound and displays the duration of the sound file in the Output panel. Add the following ActionScript to your FLA or AS file.

var my_sound:Sound = new Sound();
my_sound.onLoad = function(success:Boolean) {
    var totalSeconds:Number = this.duration/1000;
    trace(this.duration+" ms ("+Math.round(totalSeconds)+" seconds)");
    var minutes:Number = Math.floor(totalSeconds/60);
    var seconds = Math.floor(totalSeconds)%60;
    if (seconds<10) {
    seconds = "0"+seconds;
    }
    trace(minutes+":"+seconds);
};
my_sound.loadSound("song1.mp3", true);

The following example loads several songs into a SWF file. A progress bar, created using the Drawing API, displays the loading progress. When the music starts and completes loading, information displays in the Output panel. When the music starts and completes loading, information writes to the log file. Add the following ActionScript to your FLA or AS file.

var pb_height:Number = 10;
var pb_width:Number = 100;
var pb:MovieClip = this.createEmptyMovieClip("progressBar_mc", this.getNextHighestDepth());
pb.createEmptyMovieClip("bar_mc", pb.getNextHighestDepth());
pb.createEmptyMovieClip("vBar_mc", pb.getNextHighestDepth());
pb.createEmptyMovieClip("stroke_mc", pb.getNextHighestDepth());
pb.createTextField("pos_txt", pb.getNextHighestDepth(), 0, pb_height, pb_width, 22);

pb._x = 100;
pb._y = 100;

with (pb.bar_mc) {
    beginFill(0x00FF00);
    moveTo(0, 0);
    lineTo(pb_width, 0);
    lineTo(pb_width, pb_height);
    lineTo(0, pb_height);
    lineTo(0, 0);
    endFill();
    _xscale = 0;
}
with (pb.vBar_mc) {
    lineStyle(1, 0x000000);
    moveTo(0, 0);
    lineTo(0, pb_height);
}
with (pb.stroke_mc) {
    lineStyle(3, 0x000000);
    moveTo(0, 0);
    lineTo(pb_width, 0);
    lineTo(pb_width, pb_height);
    lineTo(0, pb_height);
    lineTo(0, 0);
}

var my_interval:Number;
var my_sound:Sound = new Sound();
my_sound.onLoad = function(success:Boolean) {
    if (success) {
    trace("sound loaded");
    }
};
my_sound.onSoundComplete = function() {
    clearInterval(my_interval);
    trace("Cleared interval");
}
my_sound.loadSound("song3.mp3", true);
my_interval = setInterval(updateProgressBar, 100, my_sound);

function updateProgressBar(the_sound:Sound):Void {
    var pos:Number = Math.round(the_sound.position/the_sound.duration 100);
    pb.bar_mc._xscale = pos;
    pb.vBar_mc._x = pb.bar_mc._width;
    pb.pos_txt.text = pos+"%";
}

duration (Sound.duration property)

Example

See also