There are several distinct advantages that voice recognition has for use in encryption technology.  Not only are voice biometrics perfect for telecommunication applications, most of the modern personal computers already possess the necessary hardware to utilize the applications.  Even if they don't, sound cards can be purchased for as little as $50 and condenser microphones can be purchased for as little as $10.  Therefore, for less than $100 individuals can possess the technology needed to have fairly reliable biometric encryption technology for use over the Internet.

    The error rate for this type of biometric is not as accurate, however, as some other forms.  The error rate for this type of technology ranges between two and five percent, however it lends itself well for voice verification over the public telephone system and is more secure than PINs.

    Some drawbacks to this technology are that voiceprints can vary over the course of the day, and ones health, such as a cold or laryngitis, can affect verification of the user by the system.