Voice fingerprinting system for detecting hoax emergency reports

A system for alerting emergency call center operators when an incoming caller's voice has been heard by the emergency response system before, comprising:

• a data capture system that captures speech utterances from plural callers and uses those utterances to construct embeddings for each of the plural callers;
• a data store communicating with the data capture system for holding the embeddings for each of the plural callers as stored embeddings of a latent vector space;
• the data capture system being coupled to the emergency response system and operative to capture speech utterances from an incoming caller and construct an embedding of the incoming caller;
• a query system receptive of the embedding of the incoming caller and communicating with the data store to compare the embedding of the incoming caller against the stored embeddings of the latent vector space;
• the query system providing an interface accessible to the call center operators that alerts a call center operator, substantially while an incoming emergency call is being received, the number of times stored embeddings of the latent vector space substantially match the embedding of the incoming caller, wherein the number represents how many times the incoming caller's voice has been heard by the emergency response system before.