Microphone bytearray mix and replay

Question

Hello i need your help
I have an application with microphone record and i mix another sound from song. For this step is ok i can save to my desktop and the mix is good.
But i would like to play my mix from bytearray. And is there i have a problem.
The sound is very slow....... and not same that my file save.
My code:
var epos:Number=0
//ByteArray in which the microphone sound data is stored
var soundBytes:ByteArray = new ByteArray();
//Gets your default microphone
var mic:Microphone = Microphone.getMicrophone();
Security.showSettings("microphone");
function init(){
    //Sets the minimum input level that should be considered sound
    mic.setSilenceLevel(0);
    //The amount by which the microphone boosts the signal.
    mic.gain = 50;
    //The rate at which the microphone is capturing sound, in kHz.
    mic.rate = 44;
//function called when start Record button is clicked
function startRecord():void
    mic.addEventListener(SampleDataEvent.SAMPLE_DATA, micSampleDataHandler);
//function called when stop Record button is clicked
function stopRecord():void
    mic.removeEventListener(SampleDataEvent.SAMPLE_DATA, micSampleDataHandler);
function micSampleDataHandler(event:SampleDataEvent):void
    var temp:ByteArray=new ByteArray()
    var mdata:ByteArray=event.data
    var l:Number=mdata.bytesAvailable
    sound_kar.extract(temp,l/4,epos);   
    temp.position=0
    var b:Number=temp.bytesAvailable
    epos+=l/4
    var s1,s2,s3:Number
    while (mdata.bytesAvailable)
        s3= mdata.readFloat();
        s1=0
        s2=0
        if(temp.bytesAvailable>=8){
        s1=temp.readFloat()
        s2=temp.readFloat()
        mixTracks(s1,s2,s3);
function mixTracks(l:Number,r:Number,m:Number):void
    //the function which mixes the microphone audio with background audio...
    var sampleT1_L:Number;
    var sampleT1_R:Number;
    var sampleT2:Number;
    var trackL:Number;
    var trackR:Number;
    sampleT1_L = l;
    sampleT1_R = r;
    sampleT2 = m;
    trackL = (sampleT1_L + sampleT2);
    trackR = (sampleT1_R + sampleT2);
    trackL = trackL > 1 ? 1:trackL;
    trackR = trackR > 1 ? 1:trackR;
    trackL = trackL < -1 ? -1:trackL;
    trackR = trackR < -1 ? -1:trackR;
    mixedTrack.writeFloat(trackL);
    mixedTrack.writeFloat(trackR);
For replay mix:
mixedTrack.position = 0;
soundPlay.addEventListener(SampleDataEvent.SAMPLE_DATA, playbackSampleHandler);
channelPlay = soundPlay.play();
function playbackSampleHandler(event:SampleDataEvent):void
    if (!mixedTrack.bytesAvailable > 0)//if end; return   
        return;   
    for (var i:int = 0; i < 8192/(44/44); i++){   
            var sample:Number = 0;   
                if (mixedTrack.bytesAvailable > 0)    
                    sample = mixedTrack.readFloat();   
                //write sample, i.e., play   
                for(var j:int=0; j<int((44.0/44)*2);j++){//4 for 22 khz?for 8khz   
                    event.data.writeFloat(sample);   
Can you help me to replay my mix in bytearray?
Thanks a lot
Oeann

Answer 1

hello i really need your help and excuse me for my english... i speak french..
i change my function
function playbackSampleHandler(event:SampleDataEvent):void
    for (var i:int = 0; i < 8192 && mixedTrack.bytesAvailable > 0; i++)
                      var sample:Number = mixedTrack.readFloat();
                      event.data.writeFloat(sample);
                      event.data.writeFloat(sample);
the sound play is very slowly......
can  you help me and tell me what i doing wrong?
Thanks again