[Ukv]

Voice anonymization is the use-case mentioned by the paper. If you're recording a video or communicating online, having this over your voice would benefit privacy by avoiding revealing your real voice that can be matched back to your face/name/job/etc. I think a lot of people are currently reluctant to use their voice at all online for privacy reasons, resorting to only text.

Also allows people uncomfortable with their natural voice, in particular transgender people, to communicate closer to how they wish to be perceived. Or even for someone to use their own natural voice from previous recordings if some temporary or chronic disease/disorder has impaired it.

There are probably a bunch of creative applications - like doing character voices for a D&D session or reading an audiobook. Obviously depends on the preferences of those involved, and many will currently dislike it on the basis of it being AI, but I think over time we'll see the tech integrated in interesting ways.

I imagine the majority of the use will be in entertainment/memes/satire - joining a call with an amusing voice on, or the equivalent of Snapchat's face filters. Not something critical that we couldn't do without, but still a fun application.

I don't see much benefit to kidnappers in this; if you just need to send an anonymous message without much concern about flow and latency, text or traditional TTS is fine.