Curious what effect this will have on their voice, and how they react to a new voice 'sensation'. Will they recognize their own voice at first? Will they adap

Curious what effect this will have on their voice, and how they react to a new voice 'sensation'. Will they recognize their own voice at first? Will they adapt? Might there be some psychological issues that stem from this? Are there other examples of someone's voice changing (rapidly, assuming this does affect their voice) and what were the effects?