It sounds like you are using speech-to-text and NLP algorithms to make audio recordings keyword searchable. Frankly, the consumer use cases for this are creepy

It sounds like you are using speech-to-text and NLP algorithms to make audio recordings keyword searchable. Frankly, the consumer use cases for this are creepy. If this were a thing, and my friend or family member were recording all our conversations, I would ask them to turn it off or leave. But I think you should market this to law enforcement, law firms, and possibly business executives. It would be very useful in these spaces to have searchable audio transcripts of court hearings, testimonies, depositions, interrogations, confessions, as well as board meetings, keynote presentations, etc. Maybe also useful for journalists and academic researchers who do a lot of recorded interviews. If your speech-to-text performance is really good, it could also replace stenography in closed-captioning. (Yeah that's still how closed captioning works for live TV--someone listens and pecks away at a stenotype.) Basically, sell it any place where a stenographer is currently employed, or where people currently use audio recorders. Don't try to get people to record audio of their entire lives for sentimental value, though, that isn't a realistic use case. Most people's lives are mundane and we know it. We don't need a searchable, chronological index of every time we curse or fart.