def play_sound_on_frame(self, frames, layer, armature, sound_name, sound_object=None, play_type='play', use_3d=True, lowpass=True, obstructed_lowpass=True, alert_entities=True, volume=1.0):
		""" Play a sound tied to an animation frame """

		### New sound instance
		sound = Sound()

		### Choose random sound
		if isinstance(sound_name, list):
			sound.name = sound_name[random.randrange(0,len(sound_name))]
		else: sound.name = sound_name

		###
		sound.play_on_frame = True
		sound.frames = frames
		sound.layer = layer
		sound.armature = armature
		sound.object = sound_object
		sound.play_type = play_type
		sound.use_3d = use_3d
		sound.lowpass = lowpass
		sound.obstructed_lowpass = obstructed_lowpass
		sound.alert_entities = alert_entities

		### Check for duplicates
		passed = True
		for sound_obj in self.sounds:
			if sound_obj.play_on_frame:
				if (sound_obj.armature == armature) and (sound_obj.layer == layer):
					passed = False

		if passed:
			self.sounds.append(sound)