Abstract
Recently, network services such as banking, electronic commerce, database access services, information services over the Internet and telephone networks have become popular, and user verification technology that is essential to those services has become important. Voice verification technology is one type of user verification technology, and demand for this should be anticipated in an environment where services such as those over a telephone network can use only voice as the means of communication. This paper describes practical speaker recognition technology for constructing voice verification systems. Moreover, this paper introduces new software developer kits for speaker recognition, reports on speaker recognition experiments using telephone speech that we recently conducted, and shows that the recognition performance is seriously affected by text and handset conditions that are the same/different for training and testing.
