[AS3]as3.0声音波形转换

as3声音,as3波形,不能显示波型,只能显示音量,或者在enterFrame中显示音量,搞个伪波型吧

package 
 
import flash.display.Sprite; 
import flash.events.Event; 
import flash.media.Microphone; 
import org.papervision3d.materials.ColorMaterial; 
import org.papervision3d.materials.utils.MaterialsList; 
import org.papervision3d.objects.primitives.Cube; 
import org.papervision3d.view.BasicView; 
/** 
* ... 
* @author FLASH023 
*/ 
public class Main extends BasicView 
{ 
        private var mic:Microphone; 
        private var materialslist:MaterialsList; 
        private var cube_array:Array; 
        public function Main():void { 
                init(); 
                startRendering (); 
        } 
        private function init():void { 
                mic=Microphone.getMicrophone (); 
                mic.setLoopBack(true); 
                mic.setUseEchoSuppression(true); 
                cube_array = []; 
                wavCubeInit(); 
                cameraInit(); 
        } 
        private function cameraInit():void { 
                camera.z=200; 
                cameracamera.x=camera.y=100; 
        } 
        private function wavCubeInit():void { 
                var _cormaterial:ColorMaterial = new ColorMaterial(0x096288); 
                materialslist =new MaterialsList; 
                materialslist.addMaterial (new ColorMaterial(0xB9DFCF), "top"); 
                materialslist.addMaterial (_cormaterial, "bottom"); 
                materialslist.addMaterial (_cormaterial , "front"); 
                materialslist.addMaterial (_cormaterial, "back"); 
                materialslist.addMaterial (_cormaterial, "left"); 
                materialslist.addMaterial (_cormaterial, "right"); 
                var _p:uint = 10; 
                while (_p--) { 
                        var _cube:Cube = new Cube(materialslist, 20, 10, 20); 
                        _cube .z = -_p * 20; 
                        cube_array.unshift(_cube); 
                        scene.addChild (_cube ); 
                } 
        } 
        override protected function onRenderTick(_evt:Event=null ):void { 
                var _n:int = int(mic.activityLevel/10); 
                for (var _p:String in  cube_array) { 
                        Cube(cube_array[_p]).visible = Boolean (int(_p) <= _n); 
                } 
                super.onRenderTick(); 
        } 
} 
}