This is interesting. I could see this being used for a sort of Shazam of anonymized voice data.

You have access to anonymous voice data (from service providers, messaging services etc.), but you can't connect that data to an individual without alienating their rights. Something like this could be used to filter that data for specific voice prints if you have a warrant.

Tinfoil hat take: It won't be long until voice prints are collected and shared for the majority of the population and connected to individuals via ad networks. It would be relatively simple for somewhere like Starbucks to install microphones, cancel out the in-store music, and keyword conversations for advertising purposes. The time for powerful privacy legislation is now.