get0dbfs method

@override Future<double> get0dbfs()

Implementation

@override
Future<double> get0dbfs() async {
  Map<String, String> m = {MessageTag.MESSAGE_TYPE: MessageType.GET_0DBFS};
  ReceivePort rport = new ReceivePort();
  _sendPort.send([m, rport.sendPort]);

  double res = 0;
  await for (var msg in rport) {
    res = double.parse(msg[0][MessageTag.MESSAGE_CONTENT]);
    break;
  }
  rport.close();
  return res;
}