Flash 9 Sound Spectrum – Part 2

Here’s another fun one that I did last night. It looks like I did some crazy 3D Actionscript here but I’m simply moving the y property of a static 3D cube. Hey what can I say, it works. Click on it to check it out. If you want the source then click here.

Lee

Flash 9 Sound Spectrum!

If you watched my last tutorial you know how much of pain it was to read audio data in Flash. The old “analyze in AE” method is now a thing of the past. The new SoundMixer.computeSpectrum() method reads audio data at runtime allowing you to create audio-driven animations. Click on the image below to see my first experiment. This only took 10 minutes! Get ready to see some crazy stuff from the Flash community. Source is below as well.

Flash Player 9 required!

[as]var s:Sound = new Sound();
var sc:SoundChannel;
var ba:ByteArray = new ByteArray();
var array:Array;

s.load(new URLRequest(“mix.mp3″));
sc = s.play(0,1000);

this.addEventListener(Event.ENTER_FRAME, spectrum);

var a:Number = 0;

function spectrum(event:Event)
{
a = 0;
graphics.clear();
SoundMixer.computeSpectrum(ba,true,0);
for(var i=0; i < 256; i=i+8)
{
a = ba.readFloat();
var num:Number = a*360;
graphics.lineStyle(num/15,0x0066FF|(num << 8));
graphics.drawCircle(stage.stageWidth/2,stage.stageHeight/2,i);
}

} [/as]

Lee