Stop adding empty chunks to AudioBuffer & Stop sending empty requests to dialogflow
User Story/Description
Dialogflow node needs to be stopped from sending empty audio chunks to request from dialogflow. Would also be positive to have a rms value inside the Audio.msg to easier determine if it is empty or not.
Definition of Done
When we stop sending empty requests to dialoglflow.
How
Change in microphone_component.cpp to add rms value to Audio.msg. This can later be checked in AudioBuffer to not add an empty chunk. Python version of rms calculator: http://doc.aldebaran.com/2-4/dev/python/examples/audio/audio_soundprocessing.html