the use of auditory analysis, acoustic analysis, and/or computerized techniques to recognize, identify, or discriminate among human voices.

generally, the process of finding the identity of an unknown speaker by comparing the voice of that unknown speaker with voices in a database of speakers.   It entails a one-to-many comparison.

In computer science, speaker identification (for another type of speaker recognition see speaker verification) is a type of speaker recognition. It is the problem of identifying a person solely by their voice. It can be used for purposes such as police investigations.