Audio Syncing

[w.brants]

Here's an example of how multiple events could be added to a sound file. As you can see it can both set properties of an object and execute object functions with a supplied parameter array.
It may need some polishing but it's a start.

// Extending the sound object

Sound.prototype.setSoundEvents = function( events, accuracy ){
  this.events = events;
  this.current_event = 0;
  if (this.interval_id != null) clearInterval(this.interval_id);
  this.interval_id = setInterval(this, 'sync', accuracy);
}

Sound.prototype.sync = function(){
  if (this.position >= this.events[this.current_event].sp){
    var event = this.events[this.current_event];
    if (event.f != null){
      var func = event.o[event.f];
      func.apply(event.o, event.p );
    } else if (event.p != null){
      event.o[event.p] = event.v;
    }
    this.current_event = this.current_event + 1;
    if (this.current_event == this.events.length) clearInterval(this.interval_id);
    this.sync();
  }
}

// using it

mySoundEvents = new Array();

mySoundEvents.push ( { sp:1500, o:_root.mc1, f:'gotoAndStop', p:['eeks'] } );
mySoundEvents.push ( { sp:2000, o:_root.mc1, f:'gotoAndStop', p:[1] } );
mySoundEvents.push ( { sp:3000, o:_root.mc2, p:'_visible', v:false } );
mySoundEvents.push ( { sp:3500, o:_root.mc2, p:'_visible', v:true } );

mySoundEvents.sortOn('sp');

mySound = new Sound();
mySound.setSoundEvents( mySoundEvents, 50 ); accuracy 50 msec
mySound.loadSound('myMP3file.mp3',true);
mySound.start();