Identifying the age of a speaker using speech recognition

1. What is the speaker's identification process?
2. Which technique is used in speech recognition?

What is the speaker's identification process?

In speaker identification, an utterance from an unknown speaker is analyzed and compared with speech models of known speakers. The unknown speaker is identified as the one whose model best matches the input utterance.

Which technique is used in speech recognition?

Natural language processing (NLP): While NLP isn't necessarily a specific algorithm used in speech recognition, it is the area of artificial intelligence which focuses on the interaction between humans and machines through language through speech and text.