Voice biometrics applications can be classified as speaker verification or speaker identification. Let’s examine the difference.
Speaker verification is a one-to-one process of confirming the identity of an enrolled person. The person provides a sample voiceprint which is compared to their base voiceprint in the database. If the voiceprints match, the person’s identity is verified (accepted), if they don’t match, the person’s identity is not verified (rejected). Most commercial applications are classified as speaker verification.
Speaker identification is a one-to-many process of determining the identity of an unknown person. The person provides a sample voiceprint which is compared to all of the base voiceprints in the database. If there is a match, the person is identified; if there is no match, the person is not identified. Speaker identification has been successfully used in law enforcement and intelligence applications.
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