外文翻译话人识别.docxVIP

附录A 英文文献Speaker RecognitionBy Judith A. Markowitz, J. Markowitz ConsultantsSpeaker recognition uses features of a person’s voice to identify or verify that person. It is a well-established biometric with commercial systems that are more than 10 years old and deployed non-commercial systems that are more than 20 years old. This paper describes how speaker recognition systems work and how they are used in applications.1. IntroductionSpeaker recognition (also called voice ID and voice biometrics) is the only human-biometric technology in commercial use today that extracts information from sound patterns. It is also one of the most well-established biometrics, with deployed commercial applications that are more than 10 years old and non-commercial systems that are more than 20 years old.2. How do Speaker-Recognition Systems WorkSpeaker-recognition systems use features of a person’s voice and speaking style to:attach an identity to the voice of an unknown speakerverify that a person is who she/ he claims to beseparate one person’s voice from other voices in a multi-speaker environmentThe first operation is called speak identification or speaker recognition; the second has many names, including speaker verification, speaker authentication, voice verification, and voice recognition; the third is speaker separation or, in some situations, speaker classification. This papers focuses on speaker verification, the most highly commercialized of these technologies.2.1 Overview of the ProcessSpeaker verification is a biometric technology used for determining whether the person is who she or he claims to be. It should not be confused with speech recognition, a non-biometric technology used for identifying what a person is saying. Speech recognition products are not designed to determine who is speaking.Speaker verification begins with a claim of identity (see Figure A1). Usually, the claim entails manual entry of a personal identification number (PIN), but a growing number of produ