upload-file-base64.js

function uploadAudio(mp3Data){
		var reader = new FileReader();
		reader.onload = function(event){
			var fd = new FormData();
			var mp3Name = encodeURIComponent('audio_recording_' + new Date().getTime() + '.mp3');
			console.log("mp3name = " + mp3Name);
			fd.append('fname', mp3Name);
			fd.append('data', event.target.result);
			$.ajax({
				type: 'POST',
				url: 'upload.php',
				data: fd,
				processData: false,
				contentType: false
			}).done(function(data) {
				//console.log(data);
				log.innerHTML += "\n" + data;
			});
		};
		reader.readAsDataURL(mp3Data);
	}