Hmm. I will look up this "brief" mode, if the tone is different, it might work. No one is shouting at Alexa anymore, but the damage is already done. Dogs are sensitive, its hard to undo a situational memory they have integrated. However, I think there is a way I can associate the voice with a material object, perhaps a giant teddy bear. I will share if I find a way.
M A N Y T H A N K S ! ! !
: - ))