Thread that takes care of the audio rendering. Do not call directly,
		but only as the target of a thread.

def __audiorender_thread(self):
		""" Thread that takes care of the audio rendering. Do not call directly,
		but only as the target of a thread. """
		new_audioframe = None
		logger.debug("Started audio rendering thread.")

		while self.status in [PLAYING,PAUSED]:
			# Retrieve audiochunk
			if self.status == PLAYING:
				if new_audioframe is None:
					# Get a new frame from the audiostream, skip to the next one
					# if the current one gives a problem
					try:
						start = self.audio_times.pop(0)
						stop = self.audio_times[0]
					except IndexError:
						logger.debug("Audio times could not be obtained")
						time.sleep(0.02)
						continue

					# Get the frame numbers to extract from the audio stream.
					chunk = (1.0/self.audioformat['fps'])*np.arange(start, stop)

					try:
						# Extract the frames from the audio stream. Does not always,
						# succeed (e.g. with bad streams missing frames), so make
						# sure this doesn't crash the whole program.
						new_audioframe = self.clip.audio.to_soundarray(
							tt = chunk,
							buffersize = self.frame_interval*self.clip.audio.fps,
							quantize=True
						)
					except OSError as e:
						logger.warning("Sound decoding error: {}".format(e))
						new_audioframe = None
				# Put audioframe in buffer/queue for soundrenderer to pick up. If
				# the queue is full, try again after a timeout (this allows to check
				# if the status is still PLAYING after a pause.)
				if not new_audioframe is None:
					try:
						self.audioqueue.put(new_audioframe, timeout=.05)
						new_audioframe = None
					except Full:
						pass
			
			time.sleep(0.005)
		
		logger.debug("Stopped audio rendering thread.")