# The Tween class and speed
**URL:** https://forum.kirupa.com/t/the-tween-class-and-speed/263471
**Category:** flash
**Created:** [June 16, 2008, 2:36pm UTC](https://forum.kirupa.com/t/the-tween-class-and-speed/263471 "2008-06-16T14:36:29Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@bergsorensen](https://forum.kirupa.com/u/bergsorensen)
#### Post date: [June 16, 2008, 2:36pm UTC](https://forum.kirupa.com/t/the-tween-class-and-speed/263471/1 "2008-06-16T14:36:29Z")
Im using the Tween class to change alpha of objects… though, setting speed to lowest “1”, the fade transition is rather slow still (with 24fps)
My code is:
import mx.transitions.Tween;
import mx.transitions.ease.\*;
// alpha fra start
test.\_alpha = 0;
// rollover sæt til 100%
test.onRollOver = function(){
var mxTw = new Tween(this,"\_alpha",Strong.easeOut,this.\_alpha,100,1,true);
}
// rollout sæt til 0%
test.onRollOut = function(){
var mxTw = new Tween(this,"\_alpha",Strong.easeOut,this.\_alpha,0,1,true);
}
stop();
Any way to enchance the transition/fade/alpha change speed?
Best regards
Kasper
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### Author:  [@bergsorensen](https://forum.kirupa.com/u/bergsorensen)
#### Post date: [June 16, 2008, 3:20pm UTC](https://forum.kirupa.com/t/the-tween-class-and-speed/263471/2 "2008-06-16T15:20:05Z")
ahh got it … it’s ofcause x.x for speed… and not x,x … Duh !
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### Author:  [@bergsorensen](https://forum.kirupa.com/u/bergsorensen)
#### Post date: [June 16, 2008, 3:25pm UTC](https://forum.kirupa.com/t/the-tween-class-and-speed/263471/3 "2008-06-16T15:25:26Z")
x.x and not x,x … duh! 🙂