Flash Player 10 Dynamic Sound Generation

May 20, 2008

Flash Player 10 Dynamic Sound Generation

Category: Bitmap/BitmapData, actionscript, as3, flash — joshspoon @ 7:23 am —

I miss writing classes w/ 50 or so lines of code and here is one. This is a take off of Lee Brimelow's Example of Dynamic Sound Generation. I'm using the BitmapData to create a tone.

PLAIN TEXT

Actionscript:

package
{
import flash.display.*;
import flash.events.*;
import flash.media.*;
import flash.net.URLRequest;
import flash.system.Capabilities;
import flash.text.TextField;
public class DynamicSound extends Sprite
{
private var sound:Sound;
private var noise:Number = 0;
private var _loader:Loader;
private var _bm:Bitmap;
private var _verText:TextField;
public function DynamicSound():void
{
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
_verText = new TextField();
_verText.text = Capabilities.playerType + " (" + Capabilities.version + ")";
_loader = new Loader();
_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete, false, 0, true);
_loader.load(new URLRequest("http://www.scarlet.nl/~ivo/photo_ASTRO3.JPEG"));
}
private function onComplete(evt:Event):void
{
_bm = Bitmap(_loader.content);
addChild(_bm);
addChild(_verText);
sound = new Sound();
sound.addEventListener(Event.SAMPLES_CALLBACK, onCallback);
sound.play();
}
private function onCallback(e:SamplesCallbackEvent):void
{
for(var i:uint=0; i<512; i++)
{
noise += _bm.bitmapData.getPixel(mouseX, mouseY)/ 44100;
var sample:Number = noise * Math.PI * 2;
sound.samplesCallbackData.writeFloat(Math.sin(sample));
sound.samplesCallbackData.writeFloat(Math.sin(sample));
}
}
}
}

Quick and Dirty!

1 person has left a comment

Thats something cool indeed. Gonna try it. Let me know if you gonna have anything else sound-related.

Cheers,
Evi.

Evgenios Skitsanos wrote on May 20, 2008 - 9:13 am

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May 20, 2008