The following general definitions are directly based on [Atal (1976)]:
Speaker classification : any decision-making process that uses features of the speech signal to determine characteristics of the speaker of a given utterance.
Speaker recognition : any decision-making process that uses features of the speech signal to determine information on the identity of the speaker of a given utterance.
Speaker class identification : any decision-making process that uses some features of the speech signal to determine the class the speaker of a given utterance belongs to.
Speaker class verification : any decision-making process that uses some features of the speech signal to determine whether the speaker of a given utterance belongs to a given class.
Speaker identification : any decision-making process that uses some features of the speech signal to determine who the speaker of a given utterance is.
Speaker verification : any decision-making process that uses some features of the speech signal to determine whether the speaker of a given utterance is a particular person, whose identity is specified.
Spoken language identification : any decision-making process that uses some features of the speech signal to determine what language is spoken in a given utterance.
Spoken language verification : any decision-making process that uses some features of the speech signal to determine whether the language spoken in a given utterance is a particular language.