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The end of the program

Listing 9 also signals the end of the Driver class and the end of the program.

Run the program

I encourage you to run this program from the web. Then copy the code from Listing 10 and Listing 11. Use that code tocreate your own project. Compile and run the project. Experiment with the code, making changes, and observing the results of your changes. Makecertain that you can explain why your changes behave as they do.


I will publish a list containing links to ActionScript resources as a separate document. Search for ActionScript Resources in theConnexions search box.

Complete program listings

Complete listings of the programs discussed in this lesson are provided below.

Mxml code for the project named sound03.

<?xml version="1.0" encoding="utf-8"?><!-- This project is intended to demonstrate the use of soundwith ActionScript. See the file named Driver.as for more information--><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"xmlns:cc="CustomClasses.*"><cc:Driver/></mx:Application>

Class named driver for the project named sound03.

/*Project Sound03 This project is intended to demonstrate the use of soundwith ActionScript. It also displays an image of a cloudy sky but the only purpose of the image is to make itobvious when the program starts running. This project plays the following sounds extracted frommp3 files. rainwind sizzlethunder The rain sound is continuous.The wind sound is played occasionally on the basis of a random number generator.The sizzle sound is also played occasionally on the basisof a random number generator. As soon as the sizzle sound finishes, a thunder clap sound is played.Note that with FlashDevelop, you must manually put a copy of the sound files in the bin folder.*********************************************************/ package CustomClasses{import flash.display.Bitmap; import mx.containers.Canvas;import mx.controls.Image; import mx.events.FlexEvent;import flash.events.TimerEvent; import flash.utils.Timer;import flash.media.Sound; import flash.net.URLRequest;import flash.media.SoundChannel; import flash.events.Event;//====================================================//public class Driver extends Canvas {//Extending Canvas makes it possible to locate // images with absolute coordinates. The default// location is 0,0;private var smallSky:Image = new Image(); //Instantiate a Timer object that will fire ten events// per second. private var timer:Timer = new Timer(100);//Declare a counter that will keep track of the number// of timer events that have been fired. private var loopCntr:uint;//Declare variables for the four sounds.private var sizzle:Sound; private var thunder:Sound;private var wind:Sound; private var rain:Sound;//Declare variables that are used to control when the// thunder sound is played. private var channel:SoundChannel;private var sizzlePlaying:Boolean = false; //--------------------------------------------------//public function Driver(){//constructor//Load the sky image. //Note the use of a / to eliminate the "Unable to// resolve asset for transcoding" Compiler Error [Embed("/smallsky.jpg")]var imgSmall:Class; smallSky.load(imgSmall);//Load four sound files and play two of them now.sizzle = new Sound(); sizzle.load(new URLRequest("sizzle.mp3"));thunder = new Sound();thunder.load(new URLRequest("thunder.mp3"));wind = new Sound(); wind.load(new URLRequest("wind.mp3"));//Play the wind sound through twice at startup. wind.play(0,2);rain = new Sound();rain.load(new URLRequest("rain.mp3")); //Play the rain sound foreverrain.play(0,int.MAX_VALUE);//Register an event listener on the CREATION_ // COMPLETE event.this.addEventListener(FlexEvent.CREATION_COMPLETE, creationCompleteHandler);} //end constructor //--------------------------------------------------////This handler method is executed when the Canvas has // been fully created.private function creationCompleteHandler( event:mx.events.FlexEvent):void{//Set the width and height of the Canvas object// based on the size of the bitmap in the smallSky // image.this.width = Bitmap(smallSky.content).width; this.height = Bitmap(smallSky.content).height;//Add the image to this Canvas object.this.addChild(smallSky);//Register a timer listener and start the timer // running.timer.addEventListener(TimerEvent.TIMER, onTimer); timer.start();} //end creationCompleteHandler //--------------------------------------------------////TimerEvent handler. This method is executed each// time the Timer object fires an event. public function onTimer(event:TimerEvent):void {//Update the loop counter.loopCntr++; if (loopCntr == int.MAX_VALUE - 1) {//Guard against numeric overflow. loopCntr = 0;}//end if//Play an occasional wind sound. if ((loopCntr % 25 == 0)&&(Math.random()>0.75)){ wind.play();}//end if//Play an occasional sizzle sound followed // immediately by a clap of thunder.if ((loopCntr % 35 == 0)&&(Math.random()>0.5)&&(sizzlePlaying == false)) { //Don't play another sizzle sound until this one// finishes. sizzlePlaying = true;//Play the sizzle sound and get a reference to the // SoundChannel object through which it is being// played. channel = sizzle.play();//Register an event listener that will be called // when the sizzle sound finishes playing.channel.addEventListener( Event.SOUND_COMPLETE, soundCompleteHandler);}//end if}//end onTimer //--------------------------------------------------////This method is called each time the sizzle sound// finishes playing. Each time it is called, it plays // a thunder sound.private function soundCompleteHandler(e:Event):void { //Allow another sizzle sound to be played now that// this one is finished. sizzlePlaying = false;//Play the thunder immediately following the end of // the sizzle sound.thunder.play(); }//end soundCompleteHandler//--------------------------------------------------//} //end class } //end package


This section contains a variety of miscellaneous materials.

Housekeeping material
  • Module name: Sound in ActionScript
  • Files:
    • ActionScript00160\ActionScript00160.htm
    • ActionScript00160\Connexions\ActionScriptXhtml00160.htm
PDF disclaimer: Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.


Questions & Answers

how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Object-oriented programming (oop) with actionscript. OpenStax CNX. Jun 04, 2010 Download for free at http://cnx.org/content/col11202/1.19
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