Как я могу загрузить записанное аудио на Titanium?

Я пытаюсь загрузить записанное аудио, но всегда получаю пустой файл на стороне сервера …

это мой код для аудиозаписи:

    var currentSessionMode = Titanium.Media.audioSessionMode; Titanium.Media.audioSessionMode = Ti.Media.AUDIO_SESSION_MODE_PLAY_AND_RECORD; var recording = Ti.Media.createAudioRecorder();
// default compression is Ti.Media.AUDIO_FORMAT_LINEAR_PCM
// default format is Ti.Media.AUDIO_FILEFORMAT_CAF

// this will give us a wave file with µLaw compression which
// is a generally small size and suitable for telephony recording
// for high end quality, you'll want LINEAR PCM - however, that
// will result in uncompressed audio and will be very large in size
recording.compression = Ti.Media.AUDIO_FORMAT_ULAW;
recording.format = Ti.Media.AUDIO_FILEFORMAT_WAVE;

Ti.Media.addEventListener('recordinginput', function(e) {
Ti.API.info('Input availability changed: '+e.available);
if (!e.available && recording.recording) {
b1.fireEvent('click', {});
}
});

win.addEventListener('close',function(e) {
Titanium.Media.audioSessionMode = currentSessionMode;
});

var file;
var timer;
var sound;var label = Titanium.UI.createLabel({
text:'',
top:150,
color:'#999',
textAlign:'center',
width:'auto',
height:'auto'
});

win.add(label);

function lineTypeToStr()
{
var type = Ti.Media.audioLineType;
switch(type)
{
case Ti.Media.AUDIO_HEADSET_INOUT:
return "headset";
case Ti.Media.AUDIO_RECEIVER_AND_MIC:
return "receiver/mic";
case Ti.Media.AUDIO_HEADPHONES_AND_MIC:
return "headphones/mic";
case Ti.Media.AUDIO_HEADPHONES:
return "headphones";
case Ti.Media.AUDIO_LINEOUT:
return "lineout";
case Ti.Media.AUDIO_SPEAKER:
return "speaker";
case Ti.Media.AUDIO_MICROPHONE:
return "microphone";
case Ti.Media.AUDIO_MUTED:
return "silence switch on";
case Ti.Media.AUDIO_UNAVAILABLE:
return "unavailable";
case Ti.Media.AUDIO_UNKNOWN:
return "unknown";
}
}

var linetype = Titanium.UI.createLabel({
text: "audio line type: "+lineTypeToStr(),
bottom:20,
color:'#999',
textAlign:'center',
width:'auto',
height:'auto'
});

win.add(linetype);

var volume = Titanium.UI.createLabel({
text: "volume: "+Ti.Media.volume,
bottom:50,
color:'#999',
textAlign:'center',
width:'auto',
height:'auto'
});

win.add(volume);

Ti.Media.addEventListener('linechange',function(e)
{
linetype.text = "audio line type: "+lineTypeToStr();
});

Ti.Media.addEventListener('volume',function(e)
{
volume.text = "volume: "+e.volume;
});

var duration = 0;

function showLevels()
{
var peak = Ti.Media.peakMicrophonePower;
var avg = Ti.Media.averageMicrophonePower;
duration++;
label.text = 'duration: '+duration+' seconds\npeak power: '+peak+'\navg power: '+avg;
}

var b1 = Titanium.UI.createButton({
title:'Start Recording',
width:200,
height:40,
top:20
});
b1.addEventListener('click', function()
{
if (recording.recording)
{
file = recording.stop();

var f = Ti.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory,'recording.wav');

if ( f.exists() ){
f.deleteFile();
}

f.write( file );

var audio = Ti.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory,'recording.wav');
audio.read();

var teste = file.toBlob();

/*
var emailDialog = Ti.UI.createEmailDialog();
emailDialog.subject = "feed back brasil";
emailDialog.toRecipients = [ 'douglas_b_h@hotmail.com' ];
emailDialog.messageBody = 'aaaa';
emailDialog.addAttachment( audio );
emailDialog.open();
*/var xhr = Titanium.Network.createHTTPClient();

xhr.onerror = function(e)
{
Ti.UI.createAlertDialog({title:'Error', message:e.error}).show();
Ti.API.info('IN ERROR ' + e.error);
};
xhr.setTimeout(20000);
xhr.onload = function(e)
{
//Ti.UI.createAlertDialog({title:'Success', message:'status code ' + this.status}).show();
//Ti.API.info('IN ONLOAD ' + this.status + ' readyState ' + this.readyState);
Ti.API.info( this.responseText );

Ti.API.info( audio );
};
xhr.onsendstream = function(e)
{
Ti.API.info('ONSENDSTREAM - PROGRESS: ' + e.progress);
};

// open the client
xhr.open('POST','http://universopositivo.com.br/zo/pegaFileEnviaEmail.php?userfile=' + audio );
xhr.setRequestHeader("Content-Type", "multipart/form-data");

// send the data
xhr.send();

b1.title = "Start Recording";
b2.show();
pause.hide();
clearInterval(timer);
Ti.Media.stopMicrophoneMonitor();
}
else
{
if (!Ti.Media.canRecord) {
Ti.UI.createAlertDialog({
title:'Error!',
message:'No audio recording hardware is currently connected.'
}).show();
return;
}
b1.title = "Stop Recording";
recording.start();
b2.hide();
pause.show();
Ti.Media.startMicrophoneMonitor();
duration = 0;
timer = setInterval(showLevels,1000);
}
});
win.add(b1);

var pause = Titanium.UI.createButton({
title:'Pause recording',
width:200,
height:40,
top:80
});
win.add(pause);
pause.hide();

pause.addEventListener('click', function() {
if (recording.paused) {
pause.title = 'Pause recording';
recording.resume();
timer = setInterval(showLevels,1000);
}
else {
pause.title = 'Unpause recording';
recording.pause();
clearInterval(timer);
}
});

var b2 = Titanium.UI.createButton({
title:'Playback Recording',
width:200,
height:40,
top:80
});

win.add(b2);
b2.hide();
b2.addEventListener('click', function()
{
if (sound && sound.playing)
{
sound.stop();
sound.release();
sound = null;
b2.title = 'Playback Recording';
}
else
{
Ti.API.info("recording file size: "+file.size);
sound = Titanium.Media.createSound({url:file});
sound.addEventListener('complete', function()
{
b2.title = 'Playback Recording';
});
sound.play();
b2.title = 'Stop Playback';
}
});

var switchLabel = Titanium.UI.createLabel({
text:'Hi-fidelity:',
width:'auto',
height:'auto',
textAlign:'center',
color:'#999',
bottom:115
});
var switcher = Titanium.UI.createSwitch({
value:false,
bottom:80
});

switcher.addEventListener('change',function(e)
{
if (!switcher.value)
{
recording.compression = Ti.Media.AUDIO_FORMAT_ULAW;
}
else
{
recording.compression = Ti.Media.AUDIO_FORMAT_LINEAR_PCM;
}
});
win.add(switchLabel);
win.add(switcher);

и это мой php, чтобы получить мои данные и отправить их по электронной почте:

<?php

$mailto = "mailto@mailto.com";
$subject = "teste";
$message = "mensagem teste";

print_r( $_FILES );

$file = $_FILES['userfile']['name'];
$file_size = $_FILES['userfile']['size'];
$handle = fopen($file, "r");
$content = fread($handle, $file_size);
fclose($handle);
$content = chunk_split(base64_encode($content));

// a random hash will be necessary to send mixed content
$separator = md5(time());

// carriage return type (we use a PHP end of line constant)
$eol = PHP_EOL;

// main header (multipart mandatory)
$headers = "From: FeedBack Team <feedbackMail@feedback.com.br>" . $eol;
$headers .= "MIME-Version: 1.0" . $eol;
$headers .= "Content-Type: multipart/mixed; boundary=\"" . $separator . "\"" . $eol . $eol;
$headers .= "Content-Transfer-Encoding: 7bit" . $eol;
$headers .= "This is a MIME encoded message." . $eol . $eol;

// message
$headers .= "--" . $separator . $eol;
$headers .= "Content-Type: text/plain; charset=\"iso-8859-1\"" . $eol;
$headers .= "Content-Transfer-Encoding: 8bit" . $eol . $eol;
$headers .= $message . $eol . $eol;

// attachment
$headers .= "--" . $separator . $eol;
$headers .= "Content-Type: application/octet-stream; name=\"" . $filename . "\"" . $eol;
$headers .= "Content-Transfer-Encoding: base64" . $eol;
$headers .= "Content-Disposition: attachment" . $eol . $eol;
$headers .= $content . $eol . $eol;
$headers .= "--" . $separator . "--";

//SEND Mail

if (mail($mailto, $subject, "", $headers)) {
echo "mail send ... OK"; // or use booleans here
} else {
echo "mail send ... ERROR!";
}

?>

Видно, что я не загружаю правильно мои аудио записи.
Кто-нибудь может помочь мне загрузить записанное аудио?
Я использую Titanium 3.4.0 GA и разрабатываю для iOS и Android
Спасибо