function mediaIntitialized(){
  var codec = MediaRecorder.isTypeSupported('audio/ogg')?'audio/ogg':'audio/webm';
  recorderVar = polyfilll == 1 ? new MediaRecorder(streamVar) : (recordquality == 0 ? new MediaRecorder(streamVar,{mimeType: codec}) : new MediaRecorder(streamVar,{ mimeType: codec, audioBitsPerSecond: 128000 }));
  //recorderVar.mimeType = 'audio/mp3';
  recorderVar.ondataavailable = function(e) {
      chunks.push(e.data);
  };
  recorderVar.onstop = function(e) {
      var blob = new Blob(chunks,{ 'type' : 'audio/mpeg; codecs=opus' });
      saveRecordedAudio(blob);
      chunks = [];
  };
}
function startRecording() {
  try{
      mediaIntitialized();
      recorderVar.start();
  } catch (e) {
      console.log('errormic: ' + e);
  }
}