How to upload audio file to server after recording audio

Jul 24 2017 9:38 AM

Hi all

i need to upload the audio file to server after recording audio and if i click on stop record means file should upload to the server .. by using Asp.net MVC5

i have tried following code

<body>

<button onclick="startRecording(this);">record</button>
<button onclick="stopRecording(this);" disabled>stop</button>

<h2>Recordings</h2>
<ul id="recordingslist"></ul>

<h2>Log</h2>
<pre id="log"></pre>

<script>
function __log(e, data) {
log.innerHTML += "\n" + e + " " + (data || '');
}
var audio_context;
var recorder;
function startUserMedia(stream) {
var input = audio_context.createMediaStreamSource(stream);
__log('Media stream created.');
// Uncomment if you want the audio to feedback directly
//input.connect(audio_context.destination);
//__log('Input connected to audio context destination.');

recorder = new Recorder(input);
__log('Recorder initialised.');
}
function startRecording(button) {
recorder && recorder.record();
button.disabled = true;
button.nextElementSibling.disabled = false;
__log('Recording...');
}
function stopRecording(button) {
recorder && recorder.stop();
button.disabled = true;
button.previousElementSibling.disabled = false;
__log('Stopped recording.');

// create WAV download link using audio data blob
createDownloadLink();

recorder.clear();
}

function createDownloadLink() {
recorder && recorder.exportWAV(function(blob) {
var url = URL.createObjectURL(blob);
var li = document.createElement('li');
var au = document.createElement('audio');
var hf = document.createElement('a');

au.controls = true;
au.src = url;
hf.href = url;
hf.download = new Date().toISOString() + '.wav';
hf.innerHTML = hf.download;
li.appendChild(au);
li.appendChild(hf);
recordingslist.appendChild(li);
});
}

window.onload = function init() {
try {
// webkit shim
window.AudioContext = window.AudioContext || window.webkitAudioContext;
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia;
window.URL = window.URL || window.webkitURL;

audio_context = new AudioContext;
__log('Audio context set up.');
__log('navigator.getUserMedia ' + (navigator.getUserMedia ? 'available.' : 'not present!'));
} catch (e) {
alert('No web audio support in this browser!');
}

navigator.getUserMedia({audio: true}, startUserMedia, function(e) {
__log('No live audio input: ' + e);
});
};
</script>

<script src="~/Scripts/recorder.js" type="text/javascript"></script>
</body>

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