1. A voice recognition method for an electronic apparatus, the voice recognition method comprising: receiving, by the electronic apparatus, an input voice signal of a user; determining, by the electronic apparatus, characteristics of the user based on the input voice signal; identifying, by the electronic apparatus, a user's command corresponding to the input voice signal of the user based on the determined characteristics of the user; and generating a responsive voice that is responsive to the identified user's command based on the determined characteristics of the user, wherein the determined characteristics of the user correspond to an age of the user, wherein a tone of the responsive voice correlates with the age of the user corresponding to the determined characteristics.