About Biometric Voice AuthenticationBiometric voice authentication is a very secure way to authenticate a user remotely. This type of authentication is difficult to trick since it involves matching characteristics of the user's voice such as dialect, format frequencies, pitch, and spectral magnitudes. A voice print is as unique as a person's fingerprints, making this a very secure method of authentication. Biometric voice authentication systems are very hard to fool. Even if a person's voice sounds identical to the human ear, these authentication systems take into a lot of factors that aren't easily detectable to the human ear and make it almost impossible to imitate another person's voice and get accepted by the system. Recording a person's voice usually provides enough distortion that a recorded voice also will not be accepted by the biometric voice authentication system. People trying to use this method to trick the system are further thwarted by having the user repeat a randomly generated phrase that the user does not know ahead of time for the authentication. This is called text independent directed speech. Any person trying to trick the system has almost no chance of guessing what the phrase will be ahead of time and recording the authorized individual saying this particular phrase. Since people are very comfortable talking over the telephone in their day to day life this type of authentication is pretty acceptable to most people these days. Like biometric signature authentication, this form of authentication doesn't require people to do anything they don't already do very frequently in their daily life, and it doesn't require them to provide any new information that isn't readily available since the sound of their voice isn't a closely held secret. Biometric voice authentication can be used for all sorts of purposes, including banking over the phone or completing other financial transactions. This is definitely a better system than using such information as social security numbers of a person's mother's maiden name (as many companies currently do) since this type of information can be found by someone who takes the time to look for it. One of the advantages of using biometric voice authentication systems is that these systems record everything so there is an audit trail in case questions should come up involving transactions completed after this type of authentication. The recordings can be checked to make sure there were no mistakes made and that transactions were really authorized. With a number of different companies having developed these applications, you can find a variety of different biometric voice authentication systems for sale with a simple search on the internet.
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