Hi,
For some reasons, my soundchannel event.sound_complete is not working. Basically, my class is to import sound into it and to allow use to change their volumes and the speedness of the sound.
This is the tutorial for the speed
http://blog.andre-michelle.com/2009/pitch-mp3/
Right now, what I want to do is to auto loop back the song once the song have finished play but I have having troubled doing it. Anyone, can help me?
The code will pass through SoundForward() function
Inside it, it will trigger _mp3.addEventListener(Event.COMPLETE, complete);
and will activity complete() function.
Inside it, it will trigger _soundChannel.addEventListener(Event.SOUND_COMPLETE, loopMusic);
but then the function wont trigger once the song have finish it played.
Benson
Thanks
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package examples {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.SampleDataEvent;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.net.URLRequest;
import flash.utils.ByteArray;
public class SoundForward extends Sprite
{
private const blockSize:int= 3072;
private var _mp3:Sound;
private var _sound:Sound;
private var _soundChannel:SoundChannel;
private var _target:ByteArray;
private var _position:Number;
private var _rate:Number;
private var _stop:Boolean;
private var _pausePoint:Number;
public function SoundForward(url:String, stop:Boolean)
{
_target= new ByteArray();
_mp3= new Sound();
_mp3.addEventListener(Event.COMPLETE, complete);
_mp3.load(new URLRequest(url));
_stop= stop;
_pausePoint= 0;
_position= 0.0;
_rate= 1.0;
_sound= new Sound();
_sound.addEventListener(SampleDataEvent.SAMPLE_DATA, sampleData);
_soundChannel= new SoundChannel();
}
private function complete(event:Event):void
{
_soundChannel= _sound.play();
_soundChannel.addEventListener(Event.SOUND_COMPLETE, loopMusic);
}
private function sampleData(event:SampleDataEvent):void
{
//Reuse Instead of Recreation
_target.position= 0;
//Shortcut
var data:ByteArray= event.data;
var scaledBlockSize:Number= blockSize * _rate;
var positionInt:int= _position;
var alpha:Number= _position - positionInt;
var positionTargetNum:Number= alpha;
var positionTargetInt:int= -1;
var need:int= Math.ceil(scaledBlockSize)+2;
var read:int= _mp3.extract(_target, need, positionInt);
var n:int = read == need? blockSize: read / _rate;
var l0:Number;
var r0:Number;
var l1:Number;
var r1:Number;
for(var i:int= 0; i< n; ++i)
{
if(int(positionTargetNum) != positionTargetInt)
{
positionTargetInt= positionTargetNum;
//SET Target Read Position
_target.position= positionTargetInt << 3;
//Read Two Stero samples for linear INTERPOLATION
l0= _target.readFloat();
r0= _target.readFloat();
l1= _target.readFloat();
r1= _target.readFloat();
}
//Write Interpolated amplitudes into stream
data.writeFloat(l0 + alpha * (l1 - l0) );
data.writeFloat(r0 + alpha * (r1 - r0) );
//Increase Target position
positionTargetNum += _rate;
//INCREASE FRACTION AND CLAMP BETWEEN 0 AND 1
alpha += _rate;
while( alpha >= 1.0 ) --alpha;
}
//-- FILL REST OF STREAM WITH ZEROs
if( i < blockSize)
{
while( i < blockSize)
{
data.writeFloat( 0.0 );
data.writeFloat( 0.0 );
++i;
}
}
//-- INCREASE SOUND POSITION
_position += scaledBlockSize;
}
private function loopMusic(e:Event):void
{
trace("AB");
}
}
}
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